The Book of Mathematics . Ordinary Differential Equations . H. 1" is an outstanding tutorial created by a team of authors that immerses the reader in the world of differential equations, which are one of the cornerstones of mathematical analysis. This publication will become an indispensable assistant for students, graduate students and anyone interested in mathematics, physics and engineering sciences. On the pages of this book you will find clear and accessible explanations of the theoretical foundations, as well as many practical examples that will help consolidate the knowledge gained. The authors aim to make complex concepts understandable by using intuitively clear explanations and step-by-step solutions. This is especially important for those who are just beginning their journey in the study of differential equations, because they are often perceived as a difficult and confusing material. The book covers a wide range of topics, ranging from simple ordinary first-order differential equations to more complex systems of equations. The reader will get acquainted with the methods of solution, such as the method of separating variables, the method of integrating the multiplier and many others. Each chapter includes a theoretical part, examples of problem solving and exercises for independent work, which allows not only to learn the material, but also to apply it in practice. This book will be of interest not only to students of mathematical and technical specialties, but also to teachers who are looking for a quality manual for their classes. It can be an excellent addition to courses in mathematics, physics and engineering, and will also be useful to anyone who wants to deepen their knowledge in the field of mathematical analysis. The topics raised in the book go beyond the simple study of equations. The authors focus on the practical application of differential equations in various fields of science and technology. The reader will be able to see how these mathematical tools are used to model real-world processesfrom mechanics to biology and economics. This makes the book especially valuable for those who want to understand how mathematics is applied in life and science.[citation needed] The style of the authors is distinguished by clarity and accessibility, which makes the material easy to perceive. They skillfully balance between theory and practice, which allows the reader not only to study, but also to apply the knowledge gained. The book is written taking into account modern educational standards and includes relevant examples and tasks, which makes it especially useful for students and teachers. If you are looking for a quality tutorial on differential equations, which will help you not only to master the theory, but also to learn how to apply it in practice, then “Mathematics . Ordinary Differential Equations . H. 1" would be a great choice. This edition will help you confidently step into the world of mathematics and discover new horizons of knowledge. Do not miss the opportunity to immerse yourself in the fascinating world of differential equations and expand your mathematical horizons!