The book "Human activity: a treatise on economic theory" is a unique work created by a team of authors, which is an in-depth study of the foundations of economic theory and its application in real life. This is not just a textbook, but a whole philosophy that makes the reader think about how human actions affect the economy and society as a whole. If you are interested in economics, sociology or just want to understand how the world around you functions, this work will be a real discovery for you. The book focuses on the concept of human activity as the main engine of economic processes. The authors look at how individual decisions, behaviors, and human interactions shape economic systems. They analyze how various factors from cultural to social affect economic outcomes and how these outcomes, in turn, affect the lives of each of us. The book raises important questions about how we make decisions, what the consequences of those decisions are, and how they affect our future. This work will be of interest to a wide range of readers: from students and teachers of economic faculties to professionals in the field of business and politics. If you want to deepen your knowledge in economic theory or are just looking for new ideas to think about, “Human activity” will be a valuable resource for you. The book will also be useful to those interested in the social sciences, as it connects economics with philosophy and sociology, creating a multi-layered approach to understanding human behavior. The topics raised in the book are relevant and important for modern society. The authors explore how economic models can be applied to solve real-world problems, such as poverty, inequality, and sustainable development. They emphasize that economic theory should not be abstract and inaccessible, but, on the contrary, should be practical and applicable in everyday life. This makes the book especially valuable for those who seek a practical understanding of economics and its impact on society. The style of the authors is clear and accessible, which allows even complex concepts to be explained in simple language. They use a lot of real-life examples, which helps the reader to better absorb the material and see its practical application. This book is not only informative, but also inspiring, encouraging the reader to reflect on their own actions and their consequences. In the context of other works, Human Activity can be compared with classical works on economic theory, such as Adam Smith's The Wealth of Nations or Karl Marx's Capital. However, unlike them, the book offers a more modern and multifaceted view of the economy, given the changes that have occurred in society over the past decades. This makes it particularly relevant to the modern reader. If you are looking for books on economics that will help you better understand how the world functions, and how your actions can affect economic reality, “Human Activity: A Treatise on Economic Theory” will be an excellent choice. Not only will it broaden your horizons, but it will also provide food for thought about how we can improve our lives and society as a whole. Do not miss the opportunity to immerse yourself in the world of economic theory and human activity - this may be the beginning of your path to a deeper understanding of the world around you.