The book “Dosimetry and Protection against Ionizing Radiation [Textbook]” by Boris Pavlovich Golubev is an indispensable source of knowledge for students studying radiation safety, medical physics and related disciplines . This textbook not only provides the theoretical foundations of dosimetry, but also deepens into the practical aspects of protection against ionizing radiation, making it relevant for future specialists in radiation safety, medicine, and ecology. The book discusses key concepts of dosimetry, including methods for measuring ionizing radiation, their physical and biological effects on the human body. The author carefully explains how to correctly carry out dosimetric calculations and interpret the obtained data. This is especially important for students who aspire to become radiation protection professionals, as a proper understanding of these processes is the basis of their future work. Who can like this textbook? First of all, it will be useful for students of technical and medical universities, as well as graduate students and young specialists interested in radiation safety issues . The book can also attract the attention of teachers who are looking for quality teaching materials for their courses. It is important to note that