The Equations and Inequality . Non-standard methods of solution. Handbook” by Olekhnik, Potapov and Pasichenko is a unique manual that will become an indispensable assistant for students, teachers and anyone interested in mathematics at a deeper level. This publication is not just a guide, but a real find for those who want to master non-standard approaches to solving equations and inequalities that go beyond traditional methods. The authors of the book are experienced teachers and researchers who not only deeply understand the subject, but also are able to convey complex ideas to the reader. Their writing style is clear and logical, which makes the material understandable even for those who are not professional in the field of mathematics. The book is replete with examples and tasks that will help the reader to consolidate the knowledge gained and learn how to apply non-standard methods in practice. From the first pages, the reader plunges into a world of equations and inequalities, where each section of the book opens up new horizons. The authors propose non-standard methods that allow you to find solutions where traditional approaches may be useless. This makes the book especially valuable for students preparing for exams, as well as for those who want to deepen their knowledge in mathematical analysis and algebra. Who can like this edition? First of all, students and schoolchildren studying mathematics at an in-depth level . The book will also be useful to teachers who are looking for new approaches to learning and want to diversify their classes. Mathematicians who want to expand their horizons and find non-standard solutions will also appreciate this work. The age category of readers varies from high school students to adults interested in self-development and in-depth study of mathematics. The topics raised in the book cover a wide range of issues related to equations and inequalities. The authors consider both classical and modern methods of solution, focusing on their practical application. The reader will find many examples in the book that will help to better understand the material and learn how to apply non-standard methods in various situations. This book not only develops mathematical thinking, but also teaches you to find creative solutions, which is an important skill in the modern world. The style of the authors is distinguished by scientific rigor, but at the same time they are able to make the material accessible and fascinating. Olekhnik, Potapov and Pasichenko have already established themselves as authors of high-quality teaching aids, and their new work was no exception. Readers familiar with their previous editions will be pleasantly surprised at how the authors were able to combine theory and practice, offering the reader not only knowledge, but also tools for their application. If you are looking for a high-quality mathematics textbook that will help you master non-standard methods for solving equations and inequalities, then Equations and Inequality. Non-standard methods of solution. It will be a great choice. This book will not only enrich your knowledge, but also inspire new mathematical discoveries. Do not miss the opportunity to expand your horizons and learn to solve problems that seemed impossible to you!