The book "Agroecological assessment of the humus state of the Black Earths of the Middle Volga region" by Natalia Valeryevna Semenova is a unique study , which immerses the reader in the world of agronomy and ecology , revealing important aspects of the condition of black earths, one of the most fertile soils on the planet. In the context of modern environmental challenges and global climate change, this work becomes especially relevant for specialists in the field of agriculture, ecology and agronomy, as well as for students and teachers interested in the sustainable development of agricultural systems. The book is a deep and comprehensive study of the humus state of black soils, which covers both theoretical and practical aspects. Semenova analyzes the influence of various factors on the formation and preservation of humus, emphasizing its importance for soil fertility and ecosystems in general. The reader will be able to learn about methods of assessing the humus state, as well as about modern approaches to restoring and maintaining the health of black soils. This makes the book a valuable resource for agronomists, ecologists and everyone involved in agriculture. One of the key topics raised in the book is the interaction between agronomic practice and environmental sustainability. The author focuses on the need to integrate environmental principles into agronomic methods, which allows not only to increase yields, but also to preserve natural resources for future generations. This topic will be of particular interest to those who are committed to sustainable development and want to understand how natural resources can be used effectively without harming the environment. The book also addresses climate change and its impact on soil resources, making it relevant to a wide audience including environmentalists, agronomists, and natural science students. Semenova invites readers to look at black soil as a living system that requires careful attitude and deep understanding. This approach makes the work not only scientific, but also philosophical, forcing us to think about our place in nature and the responsibility for its preservation. The style of Natalia Semenova is clear and accessible, which allows even complex scientific concepts to convey to a wide audience. It skillfully combines scientific data with practical examples, which makes reading fascinating and informative. The book will be of interest not only to professional agronomists and ecologists, but also to those who are simply interested in environmental issues and sustainable development. If you are looking for literature on agronomy, ecology or sustainable development, the "Agroecological assessment of the humus state of the black soils of the Middle Volga" will be a real find for you. This work will not only expand your knowledge of black soils and their meaning, but also inspire new ideas and approaches in your professional activities. Do not miss the opportunity to get acquainted with the work of Natalia Semenova, which, of course, will take a worthy place in the library of everyone who seeks harmony between man and nature.