The book "Steganography, digital watermarks and steganoanalysis" by Agranovsky A. In. and his colleagues is a fascinating and deep dive into the world of hidden information and data protection In today's digital society, where information is becoming one of the most valuable resources, security and privacy issues come to the fore. This book offers readers a unique opportunity to understand how you can hide information using steganography, and how to protect your data from unauthorized access with digital watermarks. Steganography is the art of hiding information that has a long history, from ancient times to modern digital technologies. The book discusses in detail various methods of steganography, including their application in modern conditions. Readers will learn how to hide messages in images, audio, and video files, as well as what algorithms are used to do this. This information will be especially useful for those interested in cybersecurity, programming and data protection. The book also touches on the topic of digital watermarks, which are a powerful tool for copyright protection and content identification. The authors explain how watermarks can be used to protect images and videos, as well as to ensure data integrity. Readers will be able to learn about the different methods of introducing watermarks and their resistance to various types of attacks. This makes the book particularly relevant for media professionals, lawyers, and anyone working with digital content. But it is not only the technical aspects that are the subject of this book. The authors raise important ethical issues related to the use of steganography and digital watermarks. How far can you go in an effort to protect your information? Where is the line between protecting personal data and violating the rights of others? These questions make the book not only informative, but also make you think about the moral aspects of technology . The book will be of interest to a wide range of readers, including students and specialists in the field of information technology, cybersecurity, as well as anyone interested in modern methods of data protection. It can be a useful tool for technical university students, graduate students and researchers, as well as for practitioners working in the field of information security. Author's style, A. In. Agranovsky, characterized by clarity and accessibility of presentation, which allows even complex technical concepts to perceive easily and with interest His previous works, such as Cryptography and Information Protection, have also been recognized for their in-depth analysis and practical application of theoretical knowledge. In this book, he continues his tradition, combining theory with practical examples and current research. If you are looking for a book that will help you understand the intricacies of steganography and digital watermarks, as well as understand their meaning in the modern world, “Steganography, digital watermarks and hip analysis” will be an excellent choice. It will not only enrich your knowledge, but also give you the opportunity to look at technology from a new perspective, opening up horizons for further study and application. Do not miss the chance to immerse yourself in the fascinating world of hidden information and data protection!