The book "Methodical instructions for performing laboratory work "Development of a mathematical model and finding the initial reference plan" by Bohan S. G. and Parmon C. and . is a unique work that will become an indispensable assistant for students and graduate students studying mathematics, engineering sciences and related disciplines . This publication not only highlights the theoretical aspects of developing mathematical models, but also offers practical recommendations that will help the reader successfully cope with laboratory work. The book focuses on the process of creating a mathematical model, which is the basis for solving many problems in various fields of science and technology. The authors explain in detail how to approach the formulation of the problem, choose adequate methods and tools for modeling, as well as how to interpret the results. It is important to note that the work is not limited to theory; it is filled with practical examples and tasks that will help the reader to consolidate the knowledge gained. Who can like this edition? First of all, it will be useful for students of technical and mathematical specialties, as well as graduate students engaged in scientific research in the field of modeling . The book may also be of interest to teachers who are looking for quality teaching materials for their students. If you are passionate about mathematics, engineering or just want to better understand how mathematical models work in real life, then this publication will be a real find for you. The topics raised in the book cover a wide range of issues related to mathematical modeling. The authors consider not only theoretical foundations, but also practical aspects, such as the choice of initial reference plans, which is a key point in the modeling process. They emphasize the importance of accuracy and adequacy of models, which allows the reader to realize how minor changes in the original data can affect the final result. This knowledge is especially relevant in the modern world, where complex systems require careful analysis and forecasting. The style of the authors is distinguished by clarity and accessibility, which makes the material understandable even for those who are just starting their way in mathematical modeling. Bohan S. G. and Parmon C. and . are known for their scientific works and methodological manuals, which have been recognized in the educational environment. Their experience and professionalism are reflected in every page of this book, making it a reliable source of knowledge. If you are looking for high-quality methodological guidelines for mathematical modeling, then "Methodological guidelines for performing laboratory work" Development of a mathematical model and finding the initial reference plan "will become your faithful companion in the world of science and education. This book will not only expand your knowledge, but also help you develop the skills you need to work successfully in any field related to mathematics and engineering. Do not miss the opportunity to discover the world of mathematical modeling with this fascinating and useful publication!