The book "Methodological instructions and control works No3, No4 on higher mathematics for students-part-time engineering specialties" by Andrianchik A. N. , Mikulika N. A. , Metelsky A. In. , Naumovich R. F. and Yurinok B. and . is an indispensable resource for students studying higher mathematics within engineering specialties. This publication is not just a manual, but a whole guide to the world of mathematical concepts, which will help students to better understand and master the complex topics necessary for the successful completion of the curriculum. The book covers a wide range of topics that are fundamental to mechanical engineering: from analysis of functions and limits to integrals and differential equations. The authors, having rich experience in teaching and scientific activities, have created a material that not only meets the requirements of the curriculum, but also focuses on the practical application of mathematical knowledge in the engineering field. Each section includes theoretical explanations, examples of solutions, and test papers that allow students to test their knowledge and prepare for exams. This book will be especially useful for part-time students who may face difficulties in studying higher mathematics due to limited time and lack of permanent access to teachers. The authors provided all the nuances that students may encounter, and offered accessible explanations that will help to understand the most difficult aspects. Thanks to the clear structure and logical presentation of the material, students will be able to independently study and master the topics, which makes this book an ideal assistant for self-education. Who can like this edition? First of all, it is addressed to students of technical specialties, especially those who study at distance learning . But not only them: the book will be useful to teachers who are looking for high-quality teaching materials for their classes. It can also be of interest to anyone who wants to refresh their knowledge of higher mathematics or prepare for exams and test papers. The topics raised in the book go beyond the simple study of mathematical formulas and theorems. The authors emphasize the importance of mathematical thinking in engineering practice, emphasizing how mathematical models help solve real-world problems faced by engineers in their professional activities. This makes the book not only a teaching tool, but also a source of inspiration for future professionals who seek to put their knowledge into practice. The style of the authors is clear and accessible, which allows readers to easily assimilate even the most complex concepts. Their experience and professionalism are felt in every section, which makes this publication especially valuable for students seeking a deep understanding of the subject. In addition, the authors have in their arsenal and other well-known works that also deserve attention. For example, their previous manuals in higher mathematics and related disciplines have already managed to win the trust of students and teachers. Thus, "Methodological instructions and control works No. 3, No. 4 in higher mathematics for part-time students of engineering specialties" is not just a book, but a whole tool for successfully mastering higher mathematics. It will become a reliable assistant for students seeking high results in their studies, and will open new horizons in understanding the mathematical foundations of engineering. If you are looking for a high-quality and affordable textbook on higher mathematics, this publication is definitely worth your attention.