“Second-order surfaces” is a fascinating and profound work written by a team of authors under the direction of C. N. Mishina . This book is not just a textbook on mathematics, but a real encyclopedia of knowledge, which explores complex and multifaceted topics related to geometry and mathematical analysis. It will become an indispensable assistant for students, graduate students and teachers, as well as for anyone interested in mathematical concepts and their practical application. The book covers a wide range of issues concerning second-order surfaces, such as their properties, classification, and applications in various fields of science and technology. It deals in detail with topics such as curvature, curved spaces, and their interaction with other mathematical structures. The authors seek not only to convey theoretical aspects to the reader, but also to show how this knowledge can be applied in practice, which makes the book especially valuable for engineers and scientists. One of the features of the “Second Order Surfaces” is an accessible and understandable style of presentation, which allows even those who are not specialists in mathematics to immerse themselves in the world of geometry. The authors use many illustrative examples and illustrations, which helps to better assimilate the material and see its practical application. The book also includes tasks and exercises that allow readers to test their knowledge and consolidate the material studied. This work will be interesting not only for students of technical specialties, but also for everyone who is fond of mathematics and wants to expand their horizons. If you’re looking for math books that can deepen your understanding of geometry, Second Order Surfaces will be a great choice. It will be useful for both beginners and more experienced readers who want to refresh their knowledge or explore new aspects. The topics raised in the book go beyond purely mathematical questions. The authors explore the link between mathematics and other sciences, such as physics and engineering, making their work particularly relevant in today's world, where interdisciplinary approaches are becoming increasingly important. The book also touches on the philosophical aspects of mathematics, emphasizing how geometric concepts can influence our perception of reality. C. N. Mishin and his team are a team of experienced scientists and teachers who have devoted their lives to the study of mathematics and its teaching. Their previous work has also received recognition in the scientific community, and “Second-order surfaces” were no exception. Each of the authors brought his own unique view and experience to the book, which makes it diverse and rich. If you’re looking for math books to help you better understand complex concepts, Second Order Surfaces is what you need. It will become not only a source of knowledge, but also an inspiration for further study of geometry and related disciplines. Immerse yourself in the world of mathematical discoveries and discover new horizons with this fascinating and informative book!