The book "Information Theory", written by a team of authors, is a fascinating and in-depth study of one of the most important aspects of the modern world - information. In the digital age, when every day we are faced with a huge amount of data, understanding the basics of information theory becomes not just useful, but vital. This work not only explains key concepts, but also immerses the reader in a world where information becomes a major resource comparable to oil or gold. From the first pages, the book captures its accessibility and clarity of presentation .. The authors, each of whom is an expert in their field, seek to make complex mathematical and theoretical concepts understandable to a wide audience. They discuss topics such as entropy, coding, data transfer, and many other aspects that form the basis of information theory. The reader will be able to learn how information is measured, how it is transmitted, and how it can be effectively stored and processed. This book will be of interest to both undergraduate and graduate students studying computer science, mathematics, or related disciplines, and professionals working in IT, telecommunications, and data science. It will also attract the attention of those who are simply interested in modern technology and want to understand how information affects our lives. The age category of readers varies from high school students to people of mature age seeking to expand their knowledge in this area. The topics raised in the book cover a wide range of issues, ranging from theoretical foundations to practical applications. The authors examine how information affects society, how it can be used to improve communication, and how it changes our approach to learning and working. The book also raises important questions about data security and ethics in the information age, making it particularly relevant in light of contemporary challenges. The style of the authors is clear and logical, which allows the reader to easily follow the course of thought. They use a lot of examples and illustrations to make the material more visual and understandable. This makes Information Theory not only a textbook, but also a fascinating reading that makes you wonder how information shapes our reality. If you’re looking for books that can complement your understanding of information theory, pay attention to the work of authors such as Claude Shannon, who is considered the founder of this field, or to modern research in the field of big data and machine learning. The Information Theory book will be a great addition to your library if you want to deepen your knowledge of how information affects all aspects of our lives. In conclusion, “Information Theory” is not just a book, but a whole world worth diving into. It opens doors to an exciting world of data and information, highlighting their importance in modern society. Read, explore and learn, because understanding information is the key to success in our rapidly changing world.