The book "Economic calculations in business: a great practical reference manual" by Yu. A. Lukasz is an indispensable tool for anyone who seeks to better understand the economic aspects of doing business and learn how to put theoretical knowledge into practice. This manual is not just another book on economics; it is a real find for entrepreneurs, students and anyone interested in financial analysis and management. In today's world, where the economic situation is changing every day, the ability to conduct economic calculations is becoming an important skill for successful business. The Book of Y. A. Lukaa offers readers extensive and accessible material that covers key aspects of the economic calculations needed to make informed decisions. The author shares practical methods and tools that will help the reader not only to understand the theory, but also to apply the knowledge gained in practice. Who may like this guide? First of all, it will be useful for students of economic specialties who want to deepen their knowledge and prepare for real practice. The book will also be an excellent assistant for novice entrepreneurs who want to learn how to effectively manage their finances and optimize business processes. Even experienced businessmen will find in it a lot of useful advice and new approaches to analysis and planning. The topics raised in the book cover a wide range of issues, ranging from the basics of financial analysis to more complex calculations related to investment and risk assessment. The author focuses on the importance of accurate calculations and their impact on business success. He shares examples from real practice, which makes the material more lively and understandable. The reader will be able to see how theoretical knowledge is applied in real situations, which greatly facilitates the learning process. Style Y. A. Lukasha is clear and accessible, which makes the book interesting for a wide audience. It uses simple and understandable explanations, avoiding complex terminology, which allows even those who do not have deep knowledge in the field of economics to easily absorb material. The book is written with love for his work, and this is felt in every paragraph. Lukasz is also known for his other work, in which he explores various aspects of economics and business, which confirms his expertise in the field. “Economic calculations in business” is not just a manual, but a whole system of knowledge that will help readers not only to master the necessary skills, but also to develop self-confidence. In the face of constant changes in the market and growing competition, the ability to conduct competent economic calculations becomes not only useful, but vital. If you are looking for a book that will help you understand the economic aspects of business, teach you to make calculations and make informed decisions, then “Economic calculations in business” A. Lucasha is exactly what you need. This book will be your reliable companion on the way to success in the business world, and you will not regret the time spent studying it.