The book "Numerical methods of solving incorrect problems" by the authors Tikhonov A. N. , Goncharsky A. In. , Stepanova V. In. and Jagola A. G. is a unique and in-depth study in the field of mathematical modeling and numerical methods. This work will be an indispensable tool for both undergraduate and graduate students and practitioners working in the fields of applied mathematics, physics, and engineering. In today's world, where complex systems and processes require precise mathematical description, incorrect problems are becoming increasingly relevant. The authors of the book consider in detail what are incorrect tasks, what are their features and complexity. They offer the reader not only theoretical foundations, but also practical methods to effectively solve such problems. The reader is immersed in the world of numerical methods that help to find solutions in conditions of uncertainty and lack of data. The book will be of interest to a wide range of readers: from senior students of technical and mathematical specialties to professionals working in scientific and research institutes. If you are passionate about mathematics, physics or engineering, and want to deepen your knowledge in the field of numerical methods, then this publication will be a real find for you. It will help not only to master the theoretical aspects, but also to put them into practice, which is especially important in the conditions of modern scientific and technological progress. The topics raised in the book cover a wide range of issues, such as regularization methods, error analysis, and the application of numerical methods in various fields of science and technology. The authors are not afraid to delve into complex aspects, focusing on the practical importance of each method. They illustrate their ideas with real-life examples, which makes the material more accessible and understandable. The style of the authors is distinguished by clarity and logical presentation, which allows the reader to easily follow the course of thought. Tikhonov, Goncharsky, Stepanov and Jagola are known for their scientific works and publications in the field of mathematics and mechanics. Their previous works, such as “Methods for solving inverse problems” and “Numbered methods in mathematical physics”, have already won recognition among specialists. In this book, they continue to develop their ideas, offering readers new approaches and solutions. The book "Numerical methods of solving incorrect problems" is not just a textbook, but a real guide to the world of complex mathematical problems. It helps readers develop critical thinking and analytical skills, which is especially important in a rapidly changing world. If you are looking for literature that will not only expand your knowledge, but also inspire new discoveries, then this publication will become your faithful companion. Do not miss the opportunity to get acquainted with the work that opens new horizons in the understanding of numerical methods and their application. This book will be a useful resource for anyone who seeks a deep understanding of mathematical foundations and their practical application in life.