The book "Modern photometric methods of analysis of organic substances", created by the team of authors, represents an important contribution to the field of analytical chemistry and photometry. This publication will be an indispensable tool for both undergraduate and graduate students, and for practitioners working in laboratories dealing with the analysis of organic compounds. In the context of the rapid development of scientific technologies and methods of analysis, this book offers readers relevant knowledge and practical recommendations that will help them in their professional activities. The main theme of the book is modern approaches to photometric analysis of organic substances. The authors consider in detail various methods, including spectrophotometric techniques, which make it possible to determine the concentration of substances in solutions with high accuracy. Readers will be able to learn about the principles of photometers, the features of different spectra and how to correctly interpret the data obtained. The book covers a wide range of topics, ranging from the basics of photometry to complex methods such as fluorimetry and atomic absorption spectroscopy. One of the key features of the publication is its practical focus. The authors not only explain the theoretical foundations, but also offer many examples from real practice, which makes the material more accessible and understandable. Readers will be able to see how photometric methods are applied in a variety of fields, such as ecology, medicine, pharmaceuticals, and the food industry.[citation needed] This makes the book especially valuable for those who want to put their knowledge into practice. The book will be of interest not only to students and graduate students, but also to professionals working in the field of analytical chemistry .. Researchers, laboratory technicians and analytical chemists will find in it useful tips and recommendations that will help improve the quality of their work. It may also be of interest to teachers who are looking for relevant materials for their courses. The topics raised in the book cover a wide range of issues related to the analysis of organic substances. The authors discuss not only methods, but also their application in various fields, which allows the reader to see the full breadth of photometry capabilities. In an environment where the accuracy and speed of analysis are becoming increasingly important, this book offers readers the tools and knowledge they need to work successfully in modern laboratories. The style of the authors is distinguished by clarity and accessibility of the presentation, which makes complex topics more understandable for a wide audience. This edition will be an excellent addition to the library of any specialist in the field of chemistry. In addition, the team of authors includes experts with extensive experience, which gives the book additional value. If you are looking for literature on photometric methods, then “Modern photometric methods for analyzing organic substances” will be a real find for you. The book will not only expand your knowledge, but also inspire new research and discoveries. It is ideal for anyone interested in analytical chemistry, spectroscopy and modern methods of analysis. Do not miss the opportunity to get acquainted with this important work, which will help you become an expert in the field of photometry and analysis of organic substances.