"Mathematical Analysis" . Tutorial for IX - X classes" by H. I. Vilenkina and S. and . Schwarzbourd is not just a textbook, but a real find for schoolchildren seeking to understand the world of mathematics more deeply. In this manual, the authors masterfully combine theory and practice, offering readers not only to learn the basic concepts of mathematical analysis, but also to learn how to apply them to real-world problems. The main purpose of the book is to prepare students for the successful development of mathematical analysis, which is an important stage in the study of mathematics in high school. Vilenkin and Schwarzburd offer readers to immerse themselves in the fascinating world of numbers, functions and limits, revealing to them the beauty and logic of mathematical laws. Each section of the manual is permeated with the spirit of research and knowledge, which makes the learning process not only useful, but also fascinating. The book will be especially interesting for high school students who are preparing for exams, as well as for those who want to deepen their knowledge in mathematics. It is suitable for both self-study and classroom work under the guidance of a teacher. The textbook will become an indispensable assistant for those who are planning to enter technical universities or just want to improve their skills in mathematics. The topics covered in the book cover a wide range of issues, from the basics of mathematical analysis to more complex concepts. The authors pay attention to such important aspects as limits, derivatives and integrals, explaining them in an accessible language and with the help of illustrative examples. Each chapter contains many tasks of varying complexity, which allows readers not only to consolidate theoretical knowledge, but also to develop practical skills. Special attention should be paid to the style of the authors . N. I. Vilenkin and S. and . Schwarzburd is known for his ability to explain complex mathematical concepts in a simple and understandable language. Their approach to learning is based on the principles of accessibility and logic, which makes their books popular among students and teachers. Vilenkin, for example, is the author of many textbooks and manuals that have long won recognition in the educational environment. "Mathematical analysis" is not just a set of formulas and theorems, but a book that inspires the study of mathematics as a science. It raises important topics such as logical thinking, analytical approach to problem solving, and the development of critical thinking. These skills are extremely important not only for studying mathematics, but also for a successful life in the modern world, where analytical abilities and problem-solving skills are valued at the weight of gold. If you are looking for a high-quality textbook on mathematical analysis that will help you not only prepare for exams, but also love mathematics, then the book of Vilenkin and Schwarzburd will become your reliable companion. It will open new horizons for you and help you see mathematics in a completely new light. Do not miss the opportunity to immerse yourself in the world of numbers and formulas that awaits you on the pages of this wonderful guide!