A Certain Integral, edited by E. In. Berezina is a fascinating and deep dive into the world of mathematical analysis, which will be a real discovery for both students and teachers. This textbook is not just a collection of theoretical knowledge, but also a practical guide that will help readers master one of the key topics of higher mathematics - a certain integral. From the first pages of the book, the authors set themselves the goal not only to explain what a certain integral is, but also to show its importance and application in various fields of science and technology. The reader will learn how integrals can solve problems related to the calculation of areas, volumes, as well as how integrals help in physics, economics and even biology. This book will be an indispensable assistant for those who want not only to remember the formulas, but also to understand how they work and where they can be applied. The book is interesting because it is addressed to a wide audience .. Students of technical and natural sciences, graduate students, as well as teachers will find in it a lot of useful materials. It is suitable for both those who are just starting to study integrals, and those who want to deepen their knowledge and prepare for exams. If you are looking for literature on mathematical analysis that is accessible for understanding and at the same time contains deep analytical materials, then “Certain integral” is exactly what you need. The topics covered in the book cover not only theoretical aspects, but also practical tasks, which makes it especially valuable. The authors pay attention to various methods of calculating integrals, including methods of substitution, integration by parts and numerical methods. Each chapter contains examples that help anchor the material and see how theoretical knowledge is applied in practice. In addition, the book presents tasks for self-solution, which allows readers to test their knowledge and skills. The style in which the book is written is distinguished by clarity and accessibility .. The authors seek to explain complex concepts in simple language, which makes the material understandable even for those who do not have deep knowledge in mathematics. E. In. Berezina and the team of authors use many illustrations and graphs, which helps to visualize the topics studied and facilitates the learning process. In addition, it is worth noting that E. In. Berezina is not the only work that deserves attention. She is also the author of other mathematics textbooks and manuals that have gained recognition among students and faculty. If you are interested in mathematics and want to expand your knowledge in this area, then you should pay attention to other works by Berezina and her colleagues. The book “A Certain Integral” is not just a textbook, but a whole world of opportunities for those who want to understand and master one of the most important topics in mathematics. It will become a reliable companion on the way to knowledge, will help to develop analytical thinking and will teach how to apply mathematics in real life. Do not miss the chance to immerse yourself in the fascinating world of integrals and discover new horizons of science!