Abstract Algebra . Part I: Educational and Methodological Manual”, created by the team of authors, is an indispensable resource for students, teachers and all those who seek to better understand the foundations of one of the most fundamental areas of mathematics. This book is not just a textbook, but a real guide to the world of abstract structures, which reveals complex concepts with clarity and logical sequence, making them available even to those who are just starting their way in algebra theory. What makes this guide truly unique? First, it is carefully structured to help the reader not get lost in the variety of new concepts. The author’s team, which unites experienced teachers and researchers, has created a material that not only explains the main ideas, such as groups, rings, fields and modules, but also shows their interrelation and application in various fields of mathematics and beyond. The book contains a rich set of examples, tasks and exercises, which turns reading into an interactive journey that allows you to consolidate theoretical knowledge in practice. Particular attention is paid to the logic of constructing theories and proofs, which makes the book a valuable tool for the formation of analytical thinking and mathematical proof skills. The style of presentation combines rigor and accessibility, which makes the material understandable to both first-year students and more prepared readers who want to deepen their knowledge. It traces the author's approach, which helps not only to remember definitions and theorems, but to understand their meaning and significance in the context of the general picture of modern algebra. This book is suitable for a wide range of readers - from students studying mathematics at undergraduate level, to graduate students and teachers looking for high-quality teaching material. It will be especially useful for those who appreciate the systematic approach and want to get a solid theoretical base necessary for further research or teaching. At the age of 16 and older, she will become an excellent assistant in preparing for exams, writing term papers or independently mastering new sections of mathematics. The topics raised in the book go beyond a simple definition of concepts. Here we consider the most important properties of algebraic structures, their classification, as well as methods of studying and applying them. The author's team focuses on the connection between abstract algebra and other branches of mathematics - geometry, number theory, combinatorics - which makes the book especially relevant and interesting for those who want to see mathematics as a holistic and living science. The style of the author is distinguished by clarity and logical harmony, which makes reading not only useful, but also fascinating. Inspired by classical works and modern approaches, the authors create a book that not only teaches, but also inspires further research. In general, "Abstract algebra. Part I: A Study Guide is not just a study guide, but a real guide to the world of abstract structures that will help you understand why this area of mathematics remains one of the most exciting and important in science. If you are looking for a book that combines theoretical depth with practical focus, and want to master the basics of abstract algebra with confidence and pleasure, this book will become your reliable companion. It can be compared to classical algebra textbooks, such as the works of H. B. Landau or E. M. Gelfand, but at the same time it has its own unique presentation of the material and a modern view. As a result, "Abstract algebra. Part I" is not just a textbook, but the key to understanding one of the most beautiful and powerful branches of mathematics, which opens the door to new knowledge and discoveries.