The book "Geometric problems for the development of critical thinking" by Smirnov and Smirnova is a unique manual that opens the door to the world of logic and spatial thinking. This is not just a collection of tasks, but a real tool for the development of analytical abilities, which will be useful for both schoolchildren and adults seeking to improve their problem-solving skills. In this book, readers will find many fascinating geometric problems, each of which is permeated with the idea of developing critical thinking. The authors offer not just a mechanical solution to the equations, but are immersed in the process of reflection, analysis and search for non-standard approaches. Each task is a challenge that requires the reader not only knowledge of geometry, but also creativity, the ability to think outside the usual framework. Who can like this edition? First of all, it will be interesting for high school students who are preparing for exams and Olympiads . Teachers of mathematics will find valuable materials for their lessons in the book that will help make classes more interactive and exciting. The book will also be useful to parents who want to support their children in their studies, as well as to anyone who is interested in the development of logical thinking and strives for self-improvement. The topics raised in the book go beyond simple geometry. The authors explore how geometric problems can help in the development of critical thinking skills, teach how to analyze information and make informed decisions. In today's world, where information comes with great speed, the ability to think critically becomes not just useful, but vital. This book is a great way to start this journey. The style of Smirnov and Smirnova is characterized by accessibility and clarity of presentation . They are able to explain complex things in simple language, which makes their book understandable even for those who are not experts in mathematics. The authors use many examples from real life, which allows readers to see the practical application of geometry and logic. Their previous work has also been recognized for their original approach to learning and fascinating challenges, which only adds value to this publication. Do not forget that “Geometric tasks for the development of critical thinking” is not just a textbook, but also an exciting adventure into the world of numbers and forms. Readers can expect that each task will become for them not only a challenge, but also an opportunity to learn something new, develop their abilities and, possibly, discover their talent for mathematics. If you are looking for a book that will help you or your children develop critical thinking through fascinating geometric tasks, then this edition will be an excellent choice. It will not only enrich your knowledge, but also make the learning process interesting and exciting. Do not miss the opportunity to immerse yourself in the world of geometry and discover new horizons of thinking!