The book "Chemistry of polycyan compounds - Methodical instructions for laboratory exercises" by Nasakin O. E. and his colleagues is an indispensable resource for students, graduate students and anyone interested in chemistry and related sciences. This publication not only immerses the reader in the fascinating world of polycyan compounds, but also offers practical recommendations for their study in the laboratory. From the first pages of the book it becomes obvious that the authors are striving to make complex chemical concepts accessible and understandable. Polycyanocontaining compounds are known to have unique properties that make them important in both theoretical and applied chemistry. The book discusses in detail their synthesis, reactivity, and application in various fields such as materials science, pharmaceuticals, and ecology. This makes the book relevant not only for students of chemical specialties, but also for researchers working in related fields. The book is distinguished by its practical approach .. Methodical instructions for laboratory exercises allow readers not only to familiarize themselves with the theoretical foundations, but also to apply the knowledge gained in practice. Each section includes clear instructions, descriptions of the necessary reagents and equipment, and safety tips, which is especially important for students working in the laboratory for the first time. This makes the book an ideal textbook for educational institutions where chemistry is one of the key disciplines. The topics raised in the book cover a wide range of issues, including the synthesis of polycyan compounds, their physico-chemical properties, and methods of analysis. The author's team pays attention not only to the main aspects of chemistry, but also to modern trends in the field of research, which allows readers to be aware of the latest achievements of science. The book also highlights the importance of an interdisciplinary approach, showing how chemistry intersects with other sciences such as biology and physics. This book will be of particular interest to senior students, graduate students, and young scientists who seek to deepen their knowledge of chemistry. It will be a useful tool for teachers who are looking for new teaching materials for their classes. In addition, researchers working in the field of synthetic and analytical chemistry will find in it many useful recommendations and ideas for their own experiments. Nasakin's Style O. E. and its co-authors are distinguished by the clarity and accessibility of the presentation. They skillfully balance between theory and practice, making the material easy to perceive. This publication can become not only a textbook, but also a reference book for everyone who is interested in chemistry and wants to expand their horizons in this fascinating field of science. If you are looking for a book that will help you to understand the complex issues of chemistry of polycyan compounds, "Chemistry of polycyan compounds - Methodical instructions for laboratory exercises" will be an excellent choice for you. It will not only enrich your knowledge, but also inspire new experiments and research. Do not miss the opportunity to immerse yourself in the world of chemistry and discover new horizons of science!