The book "Methodological instructions and control works N3, N4 in higher mathematics for part-time students of engineering specialties" by Andrianchik A. N. is an indispensable resource for students studying in correspondence at the faculties of mechanical engineering. In the context of rapidly developing science and technology, higher mathematics becomes the basis for understanding complex engineering problems, and this manual will help students not only to master the theoretical foundations, but also to apply them in practice. This book contains guidelines and test papers that will help students better understand the material and prepare for exams. Author, A. N. Andrianczyk, with extensive experience in teaching higher mathematics, offers readers a structured approach to learning, which includes theoretical explanations, examples of problem solving, and self-testing tests. This makes the manual ideal for self-study, which is especially important for part-time students who often face a lack of time and the need to study the material at a convenient pace for themselves. The book will be of interest not only to students of engineering specialties, but also to anyone who wants to deepen their knowledge in the field of higher mathematics. It is suitable for both beginners and those who already have some experience in this field. The topics covered in the book cover a wide range of mathematical concepts, such as linear algebra, differential equations, and mathematical analysis, making it useful for students of various technical fields. One of the key topics raised in the book is the application of mathematical methods to solving practical problems in engineering. Andrianczyk focuses on how higher mathematics can be used to model real-world processes and systems, making the material not only theoretically meaningful but also practically useful. Readers will be able to see how mathematical models help in machine design, design analysis, and process optimization, which will certainly be of interest to future engineers. Andrianczyk's writing style is clear and accessible, which allows even complex mathematical concepts to be explained in simple and understandable language. This makes the book particularly attractive to students who may have difficulty perceiving complex material. The author also includes many examples and tasks, which allows readers to consolidate their knowledge and confidently apply them in practice. If you are looking for a high-quality manual in higher mathematics that will help you prepare for exams and deepen your knowledge, then "Methodological instructions and test papers N3, N4 in higher mathematics for part-time students of engineering specialties" will be an excellent choice. This book will not only help you cope with the workload, but also give you the opportunity to look at mathematics from a new angle, opening the door to the world of engineering solutions and innovation. Thus, this manual is an important step towards a successful career in mechanical engineering and other technical fields. Do not miss the opportunity to enrich your knowledge and skills with this unique resource, which will become your reliable assistant in the study of higher mathematics.