The book "Leonard Euler" by A. N. Krylova is a fascinating and deep immersion into the life and work of one of the greatest mathematicians of all time. Euler, whose name has become synonymous with mathematical genius, has left a legacy that continues to inspire scientists and science lovers around the world. Krylov, known for his bright and accessible works, masterfully conveys the spirit of the time in which Euler lived, as well as his contribution to various fields of science. In this book, the reader will be able to learn about how Euler, born in 1707 in the Swiss city of Basel, became an outstanding scientist whose work covers such areas as mathematics, physics, astronomy and even philosophy. Krylov not only talks about Euler’s scientific achievements, but also immerses us in his personal life, showing how circumstances and challenges shaped him as a person and a scientist. Readers will be able to see how Euler, despite the difficulties associated with vision loss, continued to create and develop his ideas, leaving behind more than 800 works that are still relevant. This book will be of interest to both undergraduate and graduate students studying mathematics and physics, and to a wide audience who want to better understand how the scientific process works and how great minds interact with the reality of their time. If you are interested in the history of science, mathematics or just looking for inspiration, Leonard Euler will be a real find for you. Krylov masterfully balances between scientific rigor and captivating storytelling, making the book accessible to readers with varying levels of training. The topics raised in the book cover not only Euler's achievements in mathematics, such as his work on graph theory, functions, and differential equations, but also his philosophical views on science and its role in society. Krylov emphasizes how Euler, being a contemporary of such giants as Newton and Leibniz, was able to make a unique contribution to the development of science, which still remains relevant and in demand. As we read about his life, we also come across questions about how personal experiences can influence creativity and scientific achievement. Style A. N. This book is easy to read and easy to read. It skillfully combines facts with vivid descriptions, which allows the reader not only to assimilate information, but also to feel part of the history. Krylov is known for his other works, such as "Great Scientists", where he also explores the lives and achievements of prominent personalities. His ability to talk about complex things in a simple and accessible language makes his books especially valuable to a wide audience. If you are looking for a book that will not only expand your knowledge of mathematics and science, but also inspire your own achievements, Leonard Euler will become your faithful companion. This work is not just a biography, but a real ode to the genius who changed the world, and a book that will make you think about how science and life are intertwined in each of us. Don’t miss the opportunity to learn more about the person whose ideas continue to shape our understanding of the world.