The Theory of . Experiments. Research and Calculation" edited by L. A. Demyanova and the group of authors is a unique work that combines theoretical and practical aspects of scientific research. This publication will be especially interesting for those who seek to understand the basics of science, as well as for those who are engaged in experimental work in various fields of knowledge. From the first pages, the book immerses the reader in the world of scientific knowledge, where theory and practice go hand in hand. The authors consider a wide range of topics, including methods of scientific research, principles of experiment and the importance of calculations in scientific activity. Each section of the book is filled with deep reflections and relevant examples, which makes the material not only accessible, but also fascinating. Readers will be able to find here both basic concepts and more complex ideas that require a thoughtful approach. The book will be useful to students, graduate students and young scientists who are just starting their way in science. It will also be of interest to teachers and researchers who wish to update their knowledge of modern methods of scientific analysis. The age category of readers is not limited, as the book is suitable for both beginners and experienced professionals seeking to expand their horizons in the theory and practice of scientific research. The topics raised in the book cover not only the basics of the scientific method, but also the importance of critical thinking in the research process. The authors emphasize that successful experiments require not only theoretical training, but also the ability to adapt to changing conditions. This makes the book relevant in a rapidly changing world of science, where new discoveries and technologies require researchers to be flexible and creative. The style of the authors is distinguished by clarity and logical presentation, which allows readers to easily assimilate even the most complex concepts. L. A. Demyanova, as one of the leading authors, is known for her work in the field of scientific analysis and methodology. It has already established itself as an authority in the scientific community, and this book is no exception. There is a deep understanding of the subject and a desire to share knowledge with readers. The Theory of . Experiments. Research and calculation” can be interesting not only for those who are engaged in science, but also for those who just want to expand their knowledge of how the world works. It will be an excellent addition to the library of everyone who appreciates high-quality scientific literature. Readers interested in topics such as scientific methods, experimental physics, research work, and scientific research will find much useful information in this edition. If you are looking for a book that will help you understand the intricacies of the scientific method and give you the opportunity to look at the research work from a new perspective, then “Theory . Experiments. Research and calculation" will be a real find for you. Immerse yourself in the world of science with L. A. Demyanova and her colleagues, and discover new horizons of knowledge!