Modeling and Numerical-Analytical Solution of Two-Dimensional Sustainability Problems , The oscillations and contact interaction of deformable bodies” by Sergei Pronkevich is a deep immersion in the world of mechanics of deformable bodies. Exploring the complex aspects of sustainability and material dynamics. This edition will be of particular interest to mechanics specialists, engineers, as well as students of technical universities seeking to expand their knowledge in the field of numerical methods and analytical approaches to solving problems. In his book, Pronkevich offers the reader a unique view on modeling two-dimensional problems, which allows not only to understand the basic principles, but also to apply them in practice. The author focuses on the importance of numerical and analytical methods, which become indispensable tools in modern research. Readers will be able to learn about different approaches to the analysis of structural stability, oscillatory processes and contact interactions, which is a topical topic in the light of modern engineering problems. The book covers a wide range of topics, such as elasticity theory, finite element methods, and various numerical algorithms. Pronkiewicz shares his knowledge on how to correctly model physical processes, making the material available even to those who are just beginning to get acquainted with this area. The structure of the book is thought out in such a way that the reader can gradually delve into the material, starting with the basics and moving on to more complex concepts. The topics raised in the book are of practical importance in many areas, including construction, engineering, and aerospace. Understanding the stability of structures and their behavior under the influence of various loads is a key aspect in the design of safe and reliable objects. The book of Pronkevich will help readers not only to master the theoretical foundations, but also to learn how to apply them to solve real problems. The author's style is distinguished by clarity and logical presentation, which makes the material accessible to perception. Pronkiewicz uses many examples and illustrations, which helps to better understand complex concepts. His previous work has also earned recognition in the scientific community, and this publication continues the tradition of high-quality and relevant scientific literature. This book will be especially useful for students, graduate students and practicing engineers who are looking for an in-depth understanding of the mechanics of deformable bodies. It will be an excellent addition to the library of any specialist working in the field of mechanics, materials science and engineering sciences. Readers interested in topics such as "material mechanics", "numerical methods in mechanics" or "sustainability analysis of structures" will find much useful information in this edition. Thus, “Modeling and numerical-analytical solution of two-dimensional problems of stability, oscillation and contact interaction of deformed bodies” is not just a book, but a real find for anyone who wants to deepen their knowledge in the field of mechanics and learn how to apply them in practice. Pronkiewicz creates a fascinating and informative experience that inspires new research and discoveries in the world of science.