The Theory of Schedules . Estimates of absolute error and the scheme of approximate solution of problems of schedule theory by Alexander Alekseevich Lazarev is a unique textbook that immerses the reader in the world of schedule theory, one of the key areas in mathematics and computer science. In this work, the author offers in-depth analysis and practical recommendations for solving problems related to the optimization of schedules, which makes it indispensable for students, graduate students and specialists in the field of computational sciences. Lazarev, known for his work in the field of algorithm theory and optimization, creates in this book not just a textbook, but a whole methodology that will help readers understand the complex aspects of schedule theory. He shares his knowledge on how to assess absolute error and apply approximate solution schemes, which is particularly relevant in the face of growing demands for computational efficiency and resource management. The book will be of interest to students of technical specialties, graduate students and practitioners working in the field of project management, logistics, programming and system analysis. It is suitable for those who seek to deepen their knowledge in the field of process optimization and learn how to apply theoretical concepts in practice. If you are passionate about mathematics, computer science or want to improve your skills in time and resource management, this guide will be a real discovery for you. One of the key topics raised in the book is the importance of accuracy in calculations and estimates in scheduling theory. Lazarev focuses on how even small errors can lead to significant consequences in real-world applications, whether in manufacturing, programming, or project management. This topic becomes especially relevant in the modern world, where every second counts, and resources are limited. The author's style is distinguished by clarity of presentation and accessibility, which allows the reader to easily assimilate complex concepts. Lazarev uses many examples and tasks, which makes the material more clear and understandable. His approach to learning is based on the practical application of theory, which helps readers not only understand, but also apply the knowledge gained in real-life situations. In addition, the book discusses various algorithms and methods used to solve problems of schedule theory, which makes it useful not only for theorists, but also for practitioners. Lazarev offers readers unique schemes and approaches that can be used in various fields, from software development to production process management. If you are looking for books on optimization, algorithm theory or project management, Lazarev’s Theory of Schedules will be an excellent choice for you. It will not only expand your knowledge, but also help develop practical skills that will be useful in your professional activities. This guide is not just a book, but a whole tool that will help you reach new heights in your career and teach you how to effectively manage time and resources. Finally, “The Theory of Schedules . Estimation of absolute error and the scheme of approximate solution of problems of the theory of schedules" is an important contribution to the field of the theory of schedules, which deserves the attention of everyone who is interested in optimization and effective management. Do not miss the opportunity to get acquainted with the work of one of the leading experts in this field and discover new horizons in the world of theory and practice.