"Mathematical Puzzles. Volume 1: Before and After the Rubik’s Cube" by V.N. Dubrovsky and A.T. Kalinin offers an engaging journey into the worlds of logic, creativity, and mathematical thinking. Whether you're a seasoned puzzle enthusiast or just beginning to explore this fascinating field, this volume promises to be a real eye-opener. The authors present a unique perspective on puzzles that preceded the legendary Rubik’s Cube, as well as those that emerged afterward. Each challenge in the book is more than just a set of numbers and shapes—it's a true mental game designed to sharpen analytical skills and foster creative problem-solving. As you work through the puzzles, you'll not only test your abilities but also discover new insights into mathematics, logic, and even the history of puzzles. This book will appeal to a wide audience: from students eager to boost their mental agility to adults looking to refresh their knowledge and enjoy stimulating challenges. Math and logic teachers will find plenty of useful material for their lessons, while fans of board games and puzzles can indulge in fresh tasks that will keep them engaged and entertained. The topics covered are diverse and multidimensional. The authors explore not only the puzzles themselves but also effective methods for solving them, emphasizing logical reasoning and strategic thinking. Each problem is accompanied by detailed explanations and hints, making the learning process both enjoyable and accessible. Readers will see how mathematics permeates everyday life and how it can be applied to solve a variety of problems. Dubrovsky and Kalinin’s clear and approachable style makes even complex concepts easy to grasp. Their previous works have been well received by readers, and this volume is no exception. They skillfully blend theory and practice, transforming the book into not just a textbook but a true source of inspiration for anyone interested in mathematics and puzzles. If you're looking to develop your logical skills or simply want to spend time solving intriguing challenges, "Mathematical Puzzles. Volume 1: Before and After the Rubik’s Cube" is an excellent choice. This book is not just a collection of problems—it's a universe where everyone can find something to enjoy. Read, solve, and expand your horizons of mathematical thinking together with Dubrovsky and Kalinin!