The book "Physiology: educational manual" by E. N. Semenova is an indispensable resource for students of medical and biological specialties, as well as for anyone interested in the basics of human and animal physiology. In this manual, the author offers readers a deep immersion in the world of physiological processes that underlie the functioning of living organisms. Semenov, known for his scientific works and pedagogical activities, created this manual in order to facilitate understanding of the complex physiological mechanisms that govern life activities. The book covers a wide range of topics, ranging from cell physiology to systemic physiology, making it an ideal tool for both beginners and more experienced students. One of the key features of this manual is its structure and accessibility of the presentation .. Semenov uses a clear and concise language, which allows readers to easily digest the material. Each chapter contains not only theoretical aspects, but also practical tasks that contribute to a better understanding and consolidation of knowledge. This makes the book especially useful for students preparing for exams or practical classes . The topics raised in the book cover a wide range of physiological processes: from metabolism and energy balance to the mechanisms of regulation of the functions of organs and systems. The author pays attention to both normal and pathological conditions, which allows the reader to get a holistic view of physiology as a science. This makes the manual not only educational material, but also a reference for future doctors and researchers. The book will be especially interesting for those who want to deepen their knowledge in the field of medicine, biology and related disciplines. It is suitable for both students and teachers, as well as for anyone who seeks to understand how the human body functions. If you are interested in medicine, biology or just want to expand your knowledge of physiology, this guide will be a real find for you. The style of the author, which combines scientific rigor with the accessibility of the presentation, makes reading not only informative, but also fascinating. E. N. Semenov is known for his other work in the field of physiology, and this manual is a logical continuation of his scientific activities. Readers familiar with his previous works will find familiar approaches and methods in this manual, which will only increase their interest. The book “Physiology: a textbook” is not just a textbook, but a whole world of knowledge that opens the door for the reader to the complex but fascinating world of physiology. It will become a reliable assistant for students and teachers, as well as for all who seek a deep understanding of the basics of life. If you are looking for a high-quality textbook on physiology, this publication should definitely take a worthy place on your bookshelf.