The book "Computer networks: a textbook for students of the specialty I-31 03 04 "Informatics" of all forms of education" by Sirotko C . and . is an indispensable resource for students seeking a deeper understanding of the basics and principles of computer networks This manual not only covers theoretical aspects, but also offers practical recommendations, making it an ideal choice for those who want not only to study the material, but also to put it into practice. Orphan, known for his in-depth knowledge of computer science and technology, created this tutorial to help students of all forms of learning master the key concepts of computer networks. The book covers such important topics as network architecture, data transmission protocols, network devices and their functionality, as well as methods of ensuring security in networks. Each chapter is written taking into account current trends and technologies, which allows the reader to be aware of the latest innovations in the field of network technologies. This book will be especially useful for students studying at the faculties of computer science, as well as for those who are interested in IT and want to deepen their knowledge in the field of network technologies. It is suitable for both beginners and more experienced readers who want to refresh their knowledge or prepare for exams. The manual will also be of interest to teachers who are looking for quality materials to prepare for classes and lectures . One of the key topics raised in the book is the importance of computer networks in today's world. With the rapid development of technologies and an increase in the volume of transmitted information, understanding of the principles of network operation becomes necessary for a successful career in the IT field. The author focuses on how computer networks affect business processes, communication and data exchange, which makes the material especially relevant for students seeking career advancement in this area. Orphan writing style is clear and accessible, which makes complex technical concepts understandable even for beginners. It uses many examples and illustrations, which helps the reader to better absorb the material. In addition, the book contains practical tasks and questions for self-testing, which contributes to active learning and consolidation of knowledge .. If you are looking for a tutorial that will help you understand computer networks and prepare for future professional activities, this publication will be an excellent choice. The book "Computer Networks" will not only enrich your knowledge, but also inspire you to further explore this fascinating and dynamically developing area. In addition to this guide, it is worth paying attention to other works by the author, which can also be useful for students and specialists in the field of computer science. Programming, Databases and System Administration books from Sirotko will help you expand your knowledge and skills. Thus, “Computer networks: a textbook for students of the specialty I-31 03 04 “Computer Science” of all forms of education” is not just a book, but a whole world of knowledge that awaits you. Immerse yourself in the study of computer networks and discover new horizons in the world of information technology!