The book "Variational principles of the theory of elasticity and the theory of shells" under the authorship of N. P. Abovsky and his co-authors present a unique and in-depth study in the field of material mechanics that will be of interest to both professionals and students seeking to understand the complex aspects of elasticity and sheath theory. This publication is not only a textbook, but also a real reference for engineers, designers and researchers working in the field of mechanics and materials science. The book discusses in detail the variational principles that underlie the theory of elasticity and sheaths. These principles allow us to find solutions to complex problems associated with the deformation and strength of materials .. The authors masterfully explain how to use variational methods for analysis and design of structures, which makes the material accessible and understandable to the reader. At the same time, the book has sufficient depth and rigor, which allows to satisfy the requirements of even the most demanding specialists. Who can like this book? First of all, it will be useful for engineering students, graduate students and teachers studying the mechanical properties of materials and construction. It will also be of interest to practicing engineers who are looking for new approaches to solving problems in their professional activities. If you are passionate about mechanics, constructions and want to deepen your knowledge in this area, then this publication will be a real find for you. The topics raised in the book cover a wide range of issues relating to the theory of elasticity and sheath. The authors not only outline the basic principles and methods, but also consider modern approaches to the analysis of structures, which makes the material relevant and modern. The book also touches on the issues of numerical modeling, which is especially important in the context of modern design, where computer technology plays a key role. Style N. P. Abovsky and his co-authors are distinguished by the clarity and logic of the presentation .. They skillfully combine theory with practical examples, which helps the reader to better assimilate the material. In their works, there is a deep understanding of the subject and a desire to convey knowledge to the audience. This makes the book not only useful, but also fascinating to read. The book "Variational Principles of the Theory of Elasticity and the Theory of Shells" is part of a wider series of works devoted to mechanics and materials science. Other well-known works by the authors also deserve attention as they continue to develop the topics raised in this book and offer readers new perspectives on familiar problems. If you are looking for literature on mechanics, elasticity theory, or structural design, this book will be a valuable addition to your library. It will not only enrich your knowledge, but also help you become more confident in your professional activities. Do not miss the opportunity to immerse yourself in the world of variational principles and discover new horizons in the field of mechanics!