The book "Digital processing of audio and video data: a manual" by A. A. Petrovsky is an indispensable resource for anyone who seeks to better understand the world of digital technologies and their applications in audio and video production. In today's world, where visual and sound materials are becoming an integral part of our lives, knowledge of the basics of digital data processing opens the door to many opportunities, both in the professional sphere and in personal projects. Petrovsky, a well-known specialist in the field of information technology, offers readers an exciting journey into the world of digital signals. In his book, he not only explains the theoretical foundations, but also shares practical skills that will help readers master the methods of processing audio and video. You will learn how to transform, analyze and synthesize sound and visual data, as well as how to use various algorithms and software tools to achieve the best results. This book will be of interest to a wide range of readers: from students and graduate students of technical specialties to professionals in the field of media production and sound engineering. If you are passionate about creating music, video editing or just want to better understand how modern technologies work, this guide will be a real find for you. Petrovsky appeals to readers with a clear and accessible language, which makes complex concepts understandable even for beginners. The topics raised in the book cover a wide range of issues, such as the basic principles of digital signal processing, filtering techniques, compression, and audio and video coding. The author also pays attention to modern trends, such as the use of artificial intelligence in media processing, which makes the book relevant and useful for those who want to be one step ahead in their professional activities. Petrovsky focuses on the importance of high-quality sound and image, emphasizing how these aspects affect the viewer’s perception of content. The author's style is distinguished by clarity and logical presentation, which allows the reader to easily absorb the material. Petrovsky is known for his other work in the field of information technology, and his experience in teaching and research makes his books a reliable source of knowledge. If you are looking for literature that not only teaches, but also inspires, “Digital Audio and Video Processing: A Guide” will be an excellent choice for you. The book may also be of interest to those who are engaged in the development of software for media processing, as well as those who want to understand how modern technologies affect the creation and distribution of content. Understanding digital data processing is becoming increasingly important in an era where visual and audio materials dominate the media space. Do not miss the opportunity to immerse yourself in the fascinating world of digital audio and video processing with the help of the book A. A. Petrovsky . This guide will not only expand your knowledge, but also inspire you to create your own projects, whether it be musical compositions, videos or even full-fledged films. Your creativity will find new horizons, and the skills acquired during the reading process will help you become a real master in the field of digital media.