The book "Differential and Integral Equations, Variational Calculus in Examples and Tasks" by Vasilyev A. B. and his colleagues is not just a textbook, but a real find for students, graduate students and anyone who is interested in mathematics at a deeper level. This edition will be your reliable companion in the study of complex but fascinating topics, such as differential and integral equations, as well as variational calculus. From the first pages of the book, the reader plunges into the world of mathematical concepts, which, despite their complexity, are revealed with clarity and accessibility. The authors offer readers not only theoretical foundations, but also many examples and tasks that help to consolidate the material. This makes the book ideal for those who prefer a practical approach to learning, as well as for those who are ready for in-depth analysis and finding solutions to complex problems. The book will be of particular interest to students of technical and mathematical specialties, as well as teachers and researchers seeking to expand their knowledge in the field of mathematical analysis. It is suitable for both beginners and more experienced readers who want to refresh their knowledge or prepare for exams. If you are looking for a tutorial that not only explains, but also inspires, then this edition is right for you. The topics raised in the book cover a wide range of issues, ranging from the basics of differential equations to more complex concepts of calculus. The authors pay special attention to practical applications, which makes the material more lively and relevant. You will be able to see how mathematical models are applied in various fields of science and technology, which certainly adds value to this textbook. The style of the authors is distinguished by clarity and logical presentation, which allows the reader to easily follow the course of thought. Each chapter begins with a theoretical introduction, followed by many examples and tasks that help to consolidate the material studied. This approach makes the book not only a textbook, but also a real reference book, which can be accessed at any time. Vasilyev A . B. — a well-known author in the field of mathematics, and his works have already proven themselves as high-quality and useful for students and specialists . His other well-known works are also devoted to mathematical topics and are distinguished by a high level of scientific rigor and accessibility. Readers familiar with his previous work will appreciate this publication, which continues the tradition of high-quality mathematical education. If you are looking for a book that will help you understand complex mathematical topics, teach you how to apply theory in practice and inspire further research, then “Differential and Integral Equations, Variational Calculus in Examples and Tasks” will be an excellent choice. This book will not only expand your knowledge, but also open new horizons in understanding mathematics, making it more accessible and interesting. Do not miss the opportunity to get acquainted with this unique edition, which will become your faithful assistant in the world of differential equations and variational calculus. Immerse yourself in the study of mathematical concepts that form the foundations of many modern technologies and scientific research.