"Entertaining tasks and experiences" is a book written by the outstanding popularizer of science Yakov Perelman, which for many years has inspired readers to study mathematics and physics. This work, published in the early 20th century, remains relevant to this day, attracting the attention of both children and adults who seek to understand the world around them through the prism of fascinating tasks and scientific experiments. The book is a collection of entertaining tasks, puzzles and experiences that not only entertain, but also teach. Perelman masterfully combines elements of the game and science, offering the reader to plunge into the world of logic, creative thinking and scientific research. Each problem is not just a mathematical or physical problem, but a real puzzle that requires a non-standard approach and original thinking. The reader, solving them, not only develops his analytical abilities, but also enjoys the process. This book will be of interest to a wide range of readers: from schoolchildren who are just beginning to get acquainted with the basics of mathematics and physics, to students and adults seeking to refresh their knowledge and develop critical thinking. Teachers and parents will also find in it a lot of useful materials for classes with children, which makes "Entertaining tasks and experiences" an indispensable tool in the educational process. The topics raised in the book cover a wide range of scientific concepts from simple arithmetic problems to complex physical experiments. Perelman not only offers solutions, but also explains how and why certain laws of nature work. This allows the reader not just to memorize facts, but to understand the essence of phenomena more deeply, which is especially important in the modern world, where critical thinking and scientific literacy are becoming increasingly relevant. The style of Jacob Perelman is simple and accessible, which makes his books understandable even for the youngest readers. He skillfully uses humor and fascinating examples from everyday life to make complex concepts more comprehensible and interesting. His other well-known works, such as "Physics for Entertainment" and "Mathematics for Entertainment", also deserve attention and are an excellent continuation of the study of science in a fascinating form. "Entertaining tasks and experiences" is not just a book, but a whole world in which the reader can immerse himself to discover the amazing aspects of science. It inspires experiments, encourages reflection and develops a creative approach to solving problems. If you are looking for a way to make learning fun and interesting, this book will be your trusted assistant. In conclusion, Yakov Perelman’s “Entertaining Tasks and Experiments” is a real find for anyone who wants to develop their mental abilities and scientific thinking. Do not miss the opportunity to discover the world of science through the prism of fascinating tasks and experiences that will give you not only knowledge, but also joy from the learning process.