The book "Measurement of contamination of radioactive substances of various objects, food and water with the DP-5B device" by B. N. Kolobkova is a unique and relevant manual that will be of interest to both specialists in the field of radiation safety and a wide range of readers interested in environmental and health issues. In the face of modern challenges related to environmental pollution and the potential threat of radioactive contamination, this publication is becoming an indispensable source of knowledge. In his book, Kolobkov examines in detail the method of measuring radioactivity using the DP-5V device - one of the most common and affordable radiometers in Russia. The author shares his knowledge and experience, explaining how to properly measure, interpret the results and assess the level of radiation danger. The book includes practical tips on working with the device, as well as examples of real measurements, which makes the material accessible and understandable even for those who do not have a special education in this field. The book covers a wide range of topics: from the basics of radiation safety and the principles of operation of radiometers to specific cases of measuring food and water pollution. Kolobkov emphasizes the importance of radiation control in everyday life, emphasizing that even in conditions where the threat seems minimal, it is necessary to be attentive and aware. This makes the book especially relevant for gardeners, farmers, environmentalists and everyone who cares about their health and the health of their loved ones. The book will be of interest not only to professionals, but also to those who want to expand their knowledge about radiation and its impact on the environment. It is suitable for students of environmental and technical specialties, as well as for anyone interested in food and water safety. Readers interested in environmental, health and radiation safety topics will find much useful information in this edition. The author's style is distinguished by clarity and accessibility of presentation, which makes it easy to assimilate even the most complex topics. In. N. Kolobkov is an experienced specialist in the field of radiation safety, and his knowledge is supported by many years of practice. He is also the author of other works on ecology and radiation safety, which confirms his in-depth expertise in this field. The book "Measuring contamination of radioactive substances of various objects, food and water with the DP-5V device" is not just a training manual, but an important contribution to the popularization of knowledge about radiation safety. It encourages readers to think about the importance of environmental control and their own health, and provides practical tools for doing so. If you’re looking for information on how to protect yourself and your loved ones from potential threats posed by radioactive contamination, or want to learn more about radiation measurement techniques, this book will be your trusted assistant. Do not miss the opportunity to get acquainted with the work of . N. Kolobkova and discover new horizons in the field of radiation safety!