The Uncertain Integral: A Study. -method. E. E. Dolgopolova and Yu. In. Savina is not just a textbook, but a real find for students, teachers and anyone who seeks to understand the basics of mathematical analysis more deeply. In this edition, the authors offer readers a unique approach to the study of one of the most difficult, but at the same time fascinating topics of mathematics - the indefinite integral. From the first pages of the book, the reader plunges into the world of mathematical concepts and theories, which, despite their complexity, can be understood and accessible. The authors carefully explain what an indefinite integral is, what its main properties and methods of calculation are. Each chapter is filled with examples and tasks that allow not only to consolidate theoretical knowledge, but also to develop practical skills. The manual also presents various approaches to solving problems, which makes it useful for both beginners and more experienced students. This book will become an indispensable assistant for students of mathematical, physical, mathematical and engineering specialties, as well as for anyone interested in mathematics and wants to deepen their knowledge in this field. If you are preparing for exams or just want to understand the integrals, this guide will become your reliable companion. It will also be of interest to teachers who are looking for quality materials for their classes. The topics raised in the book go beyond the mere study of formulas. The authors emphasize the importance of understanding the concept of integration in the context of real-world tasks, which makes the material more relevant and applicable. They discuss how the indefinite integral is related to other branches of mathematics, such as differential equations and mathematical physics, which opens up new horizons for readers and shows how mathematics permeates many aspects of our lives. The writing style of Dolgopolov and Savin is clear and accessible. They use simple and understandable wording, avoiding unnecessary complexity. This allows readers to quickly absorb the material and apply it in practice. The authors also actively use graphic illustrations and diagrams, which makes the learning process more visual and fascinating. If you are interested in books such as "Mathematical Analysis" G. M. Fichtenholz