LOOKING FOR: ADULT FICTION Francesca Riccardi is a literary agent at Kate Nash Literary Agency. She has previously worked in sales roles at HarperCollins, Constable & Robinson, Atlantic Books (where she was recognised as a 2017 Bookseller Rising Star), and most recently was sales and marketing director for Canelo. She has worked with authors including Holly Seddon, Rachel Lynch, Cesca Major, Robert Fabbri, Marion Todd, M C Beaton, Catherine Ryan Howard, and Phil Rickman. Francesca is looking for character-driven popular commercial adult fiction across all genres. She loves books with a strong voice and sense of place, and is particularly interested in stories that are high concept, appealing to a millennial audience, and showcase lesser known experiences and/or female and diverse narratives. Francesca would like you to submit the first 5000 words of your manuscript, a synopsis and your cover letter in that order in one single Word document. (In addition to the paid sessions, Francesca is kindly offering one free session for low income/under-represented writers. Please email agent121@iaminprint.co.uk to apply, outlining your case for this option which is offered at the discretion of I Am In Print). By booking you understand you need to conduct an internet connection test with I Am In Print prior to the event. You also agree to email your material in one document to reach I Am In Print by the stated submission deadline and note that I Am In Print take no responsibility for the advice received during your agent meeting. The submission deadline is: Wednesday 22nd October 2025 by 12 noon UK BST
Recognizing the brilliance of someone psychological disturbance normalizes their experience and opens the door to transformative change. We aim to explore the lived experiences on irregular perceptions of reality with an open mind. Each Saturday includes: a live dialogue between Prof. Ernesto Spinelli and an International Existential Therapist; a moment to share your thoughts and feelings with the teachers; and a final integration facilitated by Bárbara Godoy. This series of ten dialogues set out to explore the multifaceted dimentions and complexities associated with Existential Therapies. It attempts to engage with various interpretations of insanity through the lens of patients often painful, confounding, and deeply unsettling life experiences. Invention- between Prof. Ernesto Spinelli and Dr. Betty Cannon “When I first saw the topic of this year’s dialogues, I asked myself whether I had anything to contribute. After all, I told myself, I do not usually work with psychoses or other so-called ‘extreme’ or’ irregular’ states of consciousness. This started me thinking about a series of demonstration videos that I have been making with students and supervisees over the last couple of years as part of a book project. Do those videos display ‘extreme states’? To my surprise, the answer is yes. They are filled with experiences that might be described as hallucinations (positive and negative), dissociative states, paranoia, delusions, manic and depressive states, crippling anxiety, schizoid withdrawal, depersonalization and derealization, and body dysmorphic phenomena. Not to mention the so-called normal neurotic trances that Freud called transference, countertransference and defenses, psychedelically induced extreme states, and those nightly hallucinations, our dreams. So why did I not remember at least some of these states as being ‘extreme’? Perhaps the answer lies in my perspective on therapy, which is largely existential-phenomenological. I think that the following quote, from a letter that Sartre wrote to R.D. Laing, captures the essence of this perspective: “Like you, I believe that one cannot understand psychological disturbances from the outside, on the basis of a positivistic determinism or reconstruct them with a combination of concepts that remain outside the experience as lived and experienced. I also believe that one cannot study, let alone cure, a neurosis without a fundamental respect for the person of the patient, without a constant effort to grasp the basic situation and relive it, without an attempt to rediscover the response of the person to that situation and––like you, I think––I regard mental illness as the ‘way out’ that the free organism, in its total unity, invents in order to be able to live through an intolerable situation.”* When a client and I together are able to appreciate the true brilliance of this invention, my experience is that it not only normalizes the client’s experience, it also opens the doorway to change. It allows us to invent something new.” Dr. Betty Cannon. Betty Cannon, PhD, is a licensed psychologist who has taught and practiced in Boulder, Colorado, for over 40 years. She is Professor Emerita of the Colorado School of Mines and president and founder of the Boulder Psychotherapy Institute, which has trained mental health professionals in Applied Existential Psychotherapy since 1989. In addition to existential philosophy, especially the philosophy of Sartre, AEP has roots in Gestalt therapy, classical and contemporary psychoanalysis, humanistic psychology (especially the person-centered therapy of Carl Rogers), and body-oriented psychotherapy. Betty is a member of the editorial boards of the Journal for the Society of Existential Analysis and Sartre Studies International. She is the author of Sartre and Psychoanalysis and numerous articles and chapters on existential therapy. Her mentor was Hazel E. Barnes, who translated Sartre into English and who was the world’s foremost Sartre scholar until her death in 2008. Betty is her literary executor, and her book on Sartre is dedicated to Hazel. Prof. Ernesto Spinelli was Chair of the Society for Existential Analysis between 1993 and 1999 and is a Life Member of the Society. His writings, lectures and seminars focus on the application of existential phenomenology to the arenas of therapy, supervision, psychology, and executive coaching. He is a Fellow of the British Psychological Society (BPS) as well as an APECS accredited executive coach and coaching supervisor. In 2000, he was the Recipient of BPS Division of Counselling Psychology Award for Outstanding Contribution to the Profession. And in 2019, Ernesto received the BPS Award for Distinguished Contribution to Practice. His most recent book, Practising Existential Therapy: The Relational World 2nd edition (Sage, 2015) has been widely praised as a major contribution to the advancement of existential theory and practice. Living up to the existential dictum that life is absurd, Ernesto is also the author of an on-going series of Private Eye novels. Date and Time: Saturday 25 October from 2 pm to 3 pm – (UK time) Individual Dialogue Fee: £70 Venue: Online Zoom FULL PROGRAMME 2025: 25 January “Knots” with Prof. Ernesto Spinelli and Bárbara Godoy 22 February “Healing” with Dr. Michael Guy Thompson and Prof. Ernesto Spinelli 22 March “Difference” with Prof. Tod DuBose and Prof. Ernesto Spinelli 12 April “Polarisation” with Prof. Kirk Schneider and Prof. Ernesto Spinelli 3 May “Character” with Prof. Robert Romanyshyn and Prof. Ernesto Spinelli 21 June “Opening” with Dr. Yaqui Martinez and Prof. Ernesto Spinelli 19 July “Meaning” with Dr. Jan Resnick and Prof. Ernesto Spinelli 25 October “Invention” with Dr. Betty Cannon and Prof. Ernesto Spinelli 15 November “Hallucination” with Prof. Simon du Plock and Prof. Ernesto Spinelli 13 December “Hysteria” with Bárbara Godoy and Prof. Ernesto Spinelli Read the full programme here > Course Organised by:
About this training course Transmission lines and sub-stations are essential components in the electrical power systems. Proper design and maintenance are crucial for transmission lines to maintain a continuous operation. The objective of this 5-day training course is to deal appropriately with control systems, design characteristics and electric & magnetic fields. Participants will gain a better understanding on the corona and gap discharge phenomena, constructional features, and optimization of the transmission lines. Training Objectives By participating in this course, you will be able to: Understand transmission line design and its application Examine different types of conductors and electrical characteristics Explore basic and general transmission line parameters Prevent overvoltage through insulation design Determine surge impedance and corona effects Calculate and measure electric and magnetic fields Comprehend the impact of audible noise and electromagnetic interference Identify interference within the transmission line systems Target Audience The course will greatly benefit the following groups but not limited to: Electrical Engineers Civil Engineers Transmission & Distribution Engineers Substation Operators Safety Engineers Reliability Engineers Facility & Plant Engineers Technical Engineers Design Engineers Plant Supervisors Electrical Contractors Course Level Basic or Foundation Intermediate Training Methods The training instructor relies on a highly interactive training method to enhance the learning process. This method ensures that all participants gain a complete understanding of all the topics covered. The training environment is highly stimulating, challenging, and effective because the participants will learn by case studies which will allow them to apply the material taught in their own organization. Course Duration: 5 days in total (35 hours). Training Schedule 0830 - Registration 0900 - Start of training 1030 - Morning Break 1045 - Training recommences 1230 - Lunch Break 1330 - Training recommences 1515 - Evening break 1530 - Training recommences 1700 - End of Training The maximum number of participants allowed for this training course is 25. This course is also available through our Virtual Instructor Led Training (VILT) format. Trainer Your expert course leader is a professional engineer with extensive experience in power system studies, substation design field-testing, and EHS programs settings for Mining and Electrical Utilities sectors. He was formally the Engineering Manager at GE Canada in Ontario. He received his M.Sc. in electrical engineering from the University of New Brunswick and his MBA from Laurier School of Business in Waterloo. He has managed and executed more than 150 engineering projects on substation design EMF audits and power system studies and analyses, EMF audits and grounding audits, for major electrical utilities, mines, oil and gas, data centers, industrial and commercial facilities in Canada and the U.S. He is a certified professional engineer in the provinces of Ontario and Alberta. He has various IEEE publications, has served as a technical reviewer for many IEEE journals in power systems and control systems, and is the chair of the Industry Application Chapter (IAS) for IEEE Toronto Section. He remains a very active member for the IEEE substation committee of IEEE Std. 81 ground testing (WGE6) and IEEE Std. 80 ground design (WGD7). A certified electrical safety trainer by GE Corporate and a Canadian Standard Association (CSA) committee member at the mining advisory panel for electrical safety, he also taught many technical courses all over Canada to industrial customers, electrical consultants as well as to electrical utilities customers. Highlighted Projects: Various Power System Studies for 345/230 kV Stations - Nova Scotia Power (EMERA) RF audits for Telecom tower and antennas - Cogeco/Rogers Mobile Power System analysis - Powell Canada Structural/Geotechnical Design and upgrades - Oakville Hydro Underground Cables testing and sizing - Plan Group Relay programming and design optimization - Cenovus Canada Different Arc Flash Analysis and BESS Design - SNC Lavalin Environmental site assessment (ESA) Phase I/II for multiple stations - Ontario Electromagnetic compatibility (EMC) assessment for Toronto LRT expansion - MOSAIC Battery energy storage system (BESS) installation at City of London - Siemens Canada EMF audits for 500 kV Transmission Lines - Hydro One EMF audits for 500 kV Transmission Lines - Hydro Quebec AC interference for 138 kV line modeling and mitigations - HBMS Mine POST TRAINING COACHING SUPPORT (OPTIONAL) To further optimise your learning experience from our courses, we also offer individualized 'One to One' coaching support for 2 hours post training. We can help improve your competence in your chosen area of interest, based on your learning needs and available hours. This is a great opportunity to improve your capability and confidence in a particular area of expertise. It will be delivered over a secure video conference call by one of our senior trainers. They will work with you to create a tailor-made coaching program that will help you achieve your goals faster. Request for further information post training support and fees applicable Accreditions And Affliations
About this Course Batteries are going to play an increasingly important role in the energy grid. An increasing number of developers are looking to add battery storage systems (BESS) into their existing projects. However future cash flows are highly uncertain and they are often unsure exactly how battery technology can be monetised. A strong revenue model requires stacking of different revenue sources. As the share of variable renewable sources in electricity systems further increase, battery systems are expected to play a growing role by providing frequency control and operational reserves as well as for wholesale arbitrage, while helping reduce grid integration costs. The more volatile electricity prices are, the greater the earning potential of batteries trading electricity on various electricity markets. BESS can generate revenue streams in several different ways; through a frequency response contract with the TSO, by providing grid services in other ways or by arbitrage through buying cheap power and selling power for a higher price in a liquid wholesale market. Because batteries are efficient, the round trip efficiency is also high. They can spread arbitrage trading much better than other storage types and in many cases, other asset classes. For companies that combine a battery with other tasks, for example to store power from their own panels, or to avoid a costly heavy power connection, the investment is less risky than for those that purely focus on arbitrage trading. It is uncertain whether electricity prices will fluctuate more violently in the coming years, or whether the peaks will actually level off. During this highly interactive training, the trainer will provide you with the latest insights and best practices on how to obtain the maximum economic beneï¬ts when participating with BESS in the electricity market. Training Objectives By the end of this course, the participants will be able to: Discover the different BESS battery technologies and their impact on the grid Understand the role of storage in providing flexibility to the power system Examine the potential revenue streams from BESS models Learn how profit can generated with BESS trading strategies Determine how to optimize the value from BESS projects Find out how to combine BESS with renewable PPAs Target Audience Professionals and executives from Power Utilities, Energy Companies, Financial & Investment Banks, Renewable Power Project Developers, Transmission System Operators and Energy Industry Regulators will find this training course useful. Electricity Marketing and Traders New Venture or Business Development Executives Corporate Finance and Treasury Executives Audit and Risk Management Executives Power or Utility Market Research Analysts Investment Managers for Renewable Power Projects Origination Professionals Regulation, Compliance and Documentation Officers Lawyers and Accountants Power Transmission and Distributions Engineers Trainer Our key expert is a skilled and accomplished professional with over 25 years' of extensive senior management / board level experience in the energy markets worldwide. Next to advising energy companies, banks, consultants and regulators regarding PPAs, our key expert has also conducted several highly successful training courses about Power Purchase Agreements, Power Project Finance, IPPs, and Project Risk Management to over 1,000 high level participants from Asia, Africa, Europe and Middle East. He was a member of the expert commission of the Dutch Government for 2 offshore wind parks, Hollandse Kust (zuid) Wind Farm Zone Sites 3 and 4 that advised on which of the 5 applicants did provide the best security and solutions associated with the electricity and green certificate prices, the construction and operational risks of the project. POST TRAINING COACHING SUPPORT (OPTIONAL) To further optimise your learning experience from our courses, we also offer individualized 'One to One' coaching support for 2 hours post training. We can help improve your competence in your chosen area of interest, based on your learning needs and available hours. This is a great opportunity to improve your capability and confidence in a particular area of expertise. It will be delivered over a secure video conference call by one of our senior trainers. They will work with you to create a tailor-made coaching program that will help you achieve your goals faster. Request for further information post training support and fees applicable Accreditions And Affliations
This Level 4 course aims to equip professionals with the knowledge about the skills and practical behaviours which are required for them to step into a leadership/management role. The demand for management roles is expected to grow in the coming years. This is due to a number of factors, including: The ageing population, which is leading to a shortage of skilled workers. The increasing complexity of businesses requires more managers to oversee operations. The growing importance of technology is creating new opportunities for managers to lead and innovate.
About this training course This 3-days training will provide a comprehensive review of integrity of wells exposed to carbon dioxide (CO2) in the context of Carbon Capture Utilization for enhanced oil recovery and Storage (CCUS). CO2 geological storage is a proven technology to reduce greenhouse gas emissions from sources such as coal power plants, cement kilns and steel mills. Wells are widely considered the most critical containment element, especially older wells that are not used to inject CO2 or monitor the plume evolution in the storage reservoir. The main reason for this perceived risk is the high corrosion rate of carbon steel when exposed to wet CO2, and the tendency of Portland cement to react with the gas. The training course advanced contents build on 15 years' experience in carbon storage, both in the development and deployment of technologies. First-hand, in-depth knowledge of the subject will allow us to debunk myths and focus on the real challenges of wells encountering CO2. Training Objectives After the completion of this training course, participants will be able to: Explain the CCUS market drivers Examine the behavior of CO2, on surface and in the reservoir Diagnose cement defects and design repairs Understand the limits of Portland cement Assess the benefits of different technologies and materials Realize why geology is a dominant factor in cement performance Critically choose the most appropriate monitoring techniques Classify aging processes of cement, steel, and rock when exposed to CO2 Assess the risk of existing wells if they encounter the CO2 plume Examine recent advances in real-time approaches to the production monitoring and lift management Target Audience This training course is suitable and will greatly benefit: All surface technical personnel such as process engineers & technologists Facility engineers, production engineers & technologists Drilling engineers and Well engineers Design engineers and Integrity engineers P&A engineers and Cementing engineers Geologists Senior management executives will benefit from this training as covers an overview of the technical and commercial details of CO2 capture technologies and risks involved. Course Level Intermediate Training Methods The training instructor relies on a highly interactive training method to enhance the learning process. This method ensures that all participants gain a complete understanding of all the topics covered. The training environment is highly stimulating, challenging, and effective because the participants will learn by case studies which will allow them to apply the material taught in their own organization. Course Duration: 3 days in total (21 hours). Training Schedule 0830 - Registration 0900 - Start of training 1030 - Morning Break 1045 - Training recommences 1230 - Lunch Break 1330 - Training recommences 1515 - Evening break 1530 - Training recommences 1700 - End of Training The maximum number of participants allowed for this training course is 20. This course is also available through our Virtual Instructor Led Training (VILT) format. Trainer Your expert course leader is an engineer with a passion for well integrity and possesses 28 years of international experience in field operations, technology development and management in the oil & gas and carbon storage sectors. Since 2018 he is program chair of the Well Integrity Technical Section of the Society of Petroleum Engineers (SPE). He is also author or co-author of 31 technical papers, a book chapter on CO2 geological storage and 7 patent applications. He delivers training on well integrity, plug and abandonment, asset integrity, risk management and QHSE across the Eastern Hemisphere, and carries out active research on harnessing geological barriers, modeling leaks through cement, and quantifying methane emissions from oil & gas wells. He has extensive expertise in: Well integrity, cementing, corrosion, upstream oil & gas (drilling, completion), carbon capture and storage, mathematical modeling, risk management, reliability, HSSE (health/safety/security/environment), asset integrity, management systems, sustainable development, project management, portfolio management, training, and technology development and innovation. He has personally worked on CCS projects in Europe (France, Germany, Netherlands, Norway), Algeria, Japan and USA. Partial list of companies that have benefited from the trainer's expertise: Vermilion Energy Geostock Aker BP Shell Statoil ENI TNO Geogreen Wintershall Archer INA and many more Recent CCS consulting track record: Schlumberger Total Oxand TNO THREE60 Energy and others POST TRAINING COACHING SUPPORT (OPTIONAL) To further optimise your learning experience from our courses, we also offer individualized 'One to One' coaching support for 2 hours post training. We can help improve your competence in your chosen area of interest, based on your learning needs and available hours. This is a great opportunity to improve your capability and confidence in a particular area of expertise. It will be delivered over a secure video conference call by one of our senior trainers. They will work with you to create a tailor-made coaching program that will help you achieve your goals faster. Request for further information post training support and fees applicable
OpenSSL for engineers training course description A hands on course covering OpenSSL. The course focusses on the use of OpenSSL from the command line as opposed to using its extensive libraries. Certificate authorities are configured along with key generation, HTTPS and a SSL VPN. What will you learn Describe OpenSSL. Use OpenSSL. Describe and implement: Explain how the various technologies involved in an OpenSSL work. OpenSSL for engineers training course details Who will benefit: Network personnel. Prerequisites: IP security foundation for engineers Duration 2 days OpenSSL for engineers training course contents What is OpenSSL? What is SSL? SSL versions, TLS, TLS negotiation, TLS authentication, What is OpenSSL, Command line tool, SSL library. OpenSSH, OpenVPN. Hands on TLS packet analysis. Getting started with OpenSSL Downloading, source code, packages, installing, versions, configuration, openssl command. Cipher suite selection. Hands on Encrypting a file with openssl. Public and private keys Algorithms, creating keys, public keys, private keys, encrypting the private key. Hands on Encrypting a file with keys. Digital signatures Creating signatures, checking validity of signatures, Self signing SSL certificates. Viewing certificates. Certificate files. Converting between formats. Hands on Securing a web server with HTTPS. Simple PKI with OpenSSL Root CA, signing CA, configuration files, Certificate signing requests. Email certificates, TLS server certificates. Hands on Implementing a simple PKI with OpenSSL.
Kerberos for engineers training course description This hands on course covers the details of Kerberos, from installation and administration through to how it all works including the protocols. What will you learn Describe what Kerberos is. Explain how Kerberos works. Install Kerberos. Configure Kerberos. Troubleshoot Kerberos. Kerberos for engineers training course details Who will benefit: Engineers interested in security. Prerequisites: TCP/IP foundation for engineers Duration 2 days Kerberos for engineers training course contents What is Kerberos? Single Sign On, The protocol, the standard, history, v4, v5, RFCs, Linux, Windows. Kerberos concepts and technology AAA, Authentication, Authorization, Accounting. Kerberos vs LDAP and directories. Privacy, integrity. Kerberos realms, principles, instances. Keys, salts, passwords. Key Distribution Centre, Authentication server, ticket granting server. Tickets. Installation and administration of Kerberos Installing Kerberos, creating realms, testing. DNS and Kerberos, Kerberos clients. Hands on Windows and Linux Kerberos. Kerberos protocols The Needham-Schroeder protocol, Kerberos v4. Authentication server, ticket granting server, Kerberos v5, encryption options, ticket options, other protocol features and extensions. Related protocols: GSSAPI, SPNEGO. Hands on Using Wireshark to 'see' Kerberos. Troubleshooting Kerberos Approach, debugging tools, errors and solutions. Hands on Kerberos troubleshooting. Kerberos security concerns Kerberos attacks, protocol security issues. Dictionary attacks, brute force attacks, replay attacks, MITM attacks, security solutions, protecting the KDC, firewalls, NAT and Kerberos. Hands on Kerberos logging. Software which uses Kerberos Kerberos logins, Kerberos and web based applications, Directory services. Advanced Kerberos issues Cross realm authentication, Windows issues, Windows and UNIX interoperability, Hands on Using a Windows DC for UNIX clients.
3G training course description This course is designed to give the delegate an understanding of the technologies used within a 3G UMTS mobile network. During the course we will investigate the UMTS air interface and the use of Wideband-Code Division Multiple Access (WCDMA) to facilitate high speed data access, together with HSPA to offer mobile broadband services. We will describe the use of soft handover rather than hard handover procedures and soft capacity sharing. The course includes a brief exploration of the UMTS protocol stack and the use of PDP Context and QoS support features. What will you learn Explain the 3G UMTS architecture. Describe the role of a Drifting & Serving RNC. Explain the use of ARQ & HARQ for mobile broadband. Describe how IMS integrates into the architecture. Describe the use of Media Gateway Controllers. Identify the temporary identities used within 3G UMTS. 3G training course details Who will benefit: Anyone working within the telecommunications area, especially within the mobile environment. Prerequisites: Mobile communications demystified Telecommunications Introduction Duration 2 days 3G training course contents D3GPP specifications 3GPP standards body, Evolution path, Frequency and bandwidth, Conceptual model, UMTS general architecture, UTRAN architecture & radio access bearer. CDMA principles CDMA principle, Code characteristics, Code requirements. CDMA requirements Synchronization, Power control, Soft handover, Rake receiver, Antenna consideration, Multi-user detection. Radio interface protocol architecture Access stratum & non-access stratum, Overall protocol structure, Logical and transport channels, Physical channels, Protocol termination. Layer 2 Protocols Medium Access Control (MAC) Protocol, Radio Link Control (RLC) Protocol, Packet Data Convergence Protocol (PDCP) protocol, Radio Interface for Broadcast/Multicast Services. Radio Resource Control (RRC) Protocol RRC Architecture, RRC Protocol State, Broadcast of information, RRC connection management, Radio bearer management, RRC connection mobility functions, Power control, Ciphering and Integrity. Mobile procedures Mobility management states and transitions, UMTS identities, Procedures in Idle mode (location updates, cell selection/ re-selection), Circuit-switched call set-up, Packet-switched context activation and context preservation, Data transfer initialization, Soft-handover procedure. Introduction to HSPA The need for high speed data, Fast HARQ, Improved scheduling, Additional channels, Soft combining, HS-DSCH codes, Uplink HSPA vs downlink HSPA, Full HSPA, Use of MIMO, Enhanced CELL_FACH.
Video coding training course description This course investigates the characteristics of video coding with an emphasis on compression and the standards used in IP networks. What will you learn Explain how video coding works. Describe the main video coding standards. Evaluate and compare the major video coding standards. Video coding training course details Who will benefit: Anyone working with MPEG. Prerequisites: None. Duration 2 days Video coding training course contents Introduction Video coding systems, encoding, transmission, decoding. Digital video formats: Old formats (CIFâ¦), PC formats (VGAâ¦), SD, HD, UHD. Video codecs What is a CODEC, pictures and audio, digitisation, sampling, quantisation, encoding, compressing. Codec types Lossy, lossless, uncompressed. Quality, bandwidth. Video Fps, bitstreams, pictures, frames, fields. Aspect ratios. Colour Colour perception, RGB, YUV, YCbCr sampling, 4:00, 4:2:0, 4:2:2, 4:4:4. Hybrid video coding scheme Picture partitioning, intra prediction, inter prediction, motion estimation, residual coding, in loop filtering, entropy coding. Containers Relationship with codecs, audio, video. Audio Video Interleave (.avi), .asf, QuickTime, AVCHD, Flash, .mp4, 3gp. MPEG-TS. MPEG Analysing MPEG frames. Video coding standards H.264/AVC: Profiles MPEG, bit rates, resolution. I, B, P frames, GOP. MPEG 2, MPEG 4, H.264, H.265, VP9, AV1. Hands onand levels, how it works. H.265/HEVC: Profiles and levels, Quadtrees, slices, how it works. Open video coding: VP8, VP9, AV1.