The book [D.D.T.] Ionic equilibria by Smirnov S. In. is a fascinating and deep dive into the world of chemistry that will be of interest to both students and professional chemists This work is not just a textbook, but a real study that helps to understand the complex processes occurring in solutions and their impact on various chemical reactions. Smirnov, S. In. — a well-known Russian chemist and teacher, who for many years has been engaged in teaching and research in the field of chemistry . His writing style is clear and accessible, making complex concepts understandable to a wide audience. In this book, the author shares his knowledge and experience, which allows readers not only to learn the theoretical aspects, but also to apply them in practice. "Solutions. Ionic equilibrium" covers a wide range of topics, ranging from the basics of the theory of solutions to more complex concepts, such as ion equilibrium and their application in various fields of science. The book includes a detailed explanation of principles such as the law of action of masses, the concept of ion activity, and methods for calculating equilibria. Readers will be able to learn how these principles apply in real-life situations, such as biochemistry, ecology, and analytical chemistry. This book will be especially useful for students of chemical faculties, graduate students and teachers, as well as anyone interested in chemistry and wants to deepen their knowledge in this area. It may be of interest to those studying related disciplines such as biology, ecology, and medicine, as understanding ion equilibria is essential for many processes in living organisms and the environment. The topics raised in the book concern not only theoretical aspects, but also practical applications, which makes it especially valuable for specialists working in laboratories and scientific institutions. The book helps readers develop critical thinking and a scientific approach to solving problems, which is an important skill in any scientific activity. Smirnov in his work uses many examples and illustrations, which makes the material more clear and understandable. His approach to learning is based on the interaction of theory and practice, which allows readers not only to remember information, but also to apply it in real conditions. This makes the book "Solutions. Ionic equilibria" is not only a textbook, but also a reference book for anyone who wants to be aware of modern achievements in the field of chemistry. If you are looking for literature that will help you understand the complex issues of ion balances, and also teach you how to apply this knowledge in practice, then “Solutions . Ionic equilibria" will be an excellent choice. The book will become an indispensable assistant for both students and professionals seeking a deep understanding of chemical processes. Do not miss the opportunity to expand your knowledge and discover new horizons in the world of chemistry with this wonderful book