"The Rows" is one of those books that can immerse the reader in the world of mathematics, opening up to him not only theoretical aspects, but also the practical application of numbers in everyday life. Authors, among whom H. is distinguished I. Vilenkin, known for his deep understanding of mathematical concepts and his ability to explain complex ideas, offers readers an exciting journey through the world of series and sequences. This book will be an indispensable assistant for students, teachers and anyone interested in mathematics. In the series, various types of series are considered: from simple numerical sequences to more complex mathematical structures. The authors not only explain how these series work, but also show how they can be used to solve real-world problems. Readers will be able to learn about convergent and divergent series, how to calculate the sums of infinite series and what methods exist for their analysis. This makes the book relevant not only for students of mathematical specialties, but also for anyone who wants to expand their knowledge in this area. The book will be interesting for both students preparing for exams and adults who want to refresh their knowledge or master new mathematical concepts. If you’ve ever wondered how numbers can interact with each other, how they can create amazing patterns, then “rows” are what you need. It is suitable for those who want to understand how mathematics permeates our lives, from economics to physics and even art. The themes raised in the book are diverse and multi-faceted. The authors discuss not only theoretical aspects, but also the practical application of series in various fields of science. This allows readers to see how mathematics can be not only abstract, but also very specific, applicable in real-world situations. Discussing a number of issues, such as convergence, limit processes, and their significance in mathematics, makes the book especially valuable for those who want to deepen their knowledge. Style N. I. Vilenkina and his co-authors are distinguished by clarity and accessibility. They are able to explain complex things in simple language, which makes "rows" suitable even for those who do not have deep knowledge in mathematics. Vilenkin is known for his other works, such as Mathematics for All and Problems in Mathematics, which have also been recognized for their accessibility and fascination. In The Rows, he continues this tradition by creating a text that is not only informative, but also inspires further study of mathematics. If you are looking for a book that will help you understand how rows work, and how they can be applied in various fields, “rows” is exactly the kind of work that is worth reading. Not only will it expand your mathematical horizons, but it will also help you develop the critical thinking you need to solve complex problems. This edition will be an excellent addition to the library of anyone interested in mathematics, whether it is a student, teacher or just a fan of numbers. Do not miss the opportunity to discover a world where numbers come to life and become part of your daily life!