The book "Flora of the Mari ASSR and issues of its protection", created by the team of authors, is a unique and rich research work that reveals the richness and diversity of the flora of one of the most picturesque corners of Russia - the Mari Autonomous Soviet Republic. This book is a real storehouse of knowledge for all who are interested in nature, botany and the conservation of natural resources, as well as for professionals, environmentalists and nature lovers seeking to understand how to preserve the unique ecosystems of the region for future generations. The main theme of the book is the richness of the flora of the Mari ASSR, including rare and endangered plant species, as well as their role in the ecosystems of the region. The authors describe in detail the diversity of plant communities, the peculiarities of their distribution and interaction with the environment. But the book isn’t just about describing species — it raises important questions about conservation, the need to conserve biodiversity, and the environmental threats hanging over this unique natural heritage. It shows not only a scientific perspective, but also a deep understanding of the need for harmonious coexistence between man and nature. This book is excellent for a wide range of readers .. It will be of interest to students and teachers of biological faculties, ecologists, conservationists, as well as active nature lovers who want to expand their knowledge of the flora of the Mari ASSR. For young researchers and schoolchildren, it will become a valuable source of information about the richness of local plants and the problems of their preservation. Adult readers who care about the future of nature will find in this book inspiration and practical advice on environmental issues. The style of the authors is distinguished by scientific accuracy, but at the same time it remains accessible and alive, which makes reading fascinating and informative. The book vividly traces the links between nature and the culture of the region, and also emphasizes the importance of preserving natural resources in the context of modern development. The authors, often relying on the rich experience of field research, share interesting facts, rare photos and analytical conclusions, which makes the book not only a scientific work, but also a real guide to the natural resources of the Mari ASSR. A special place in the book is occupied by the discussion of modern problems of flora protection in the region. It raises questions about the need to create nature reserves, protected areas, as well as the role of local communities and government structures in the preservation of unique plant species. The author's team emphasizes that the preservation of natural resources is not only the responsibility of specialists, but also the responsibility of every citizen, because it is on our decisions that the future of nature depends. If you are looking for a book that combines scientific depth, practical significance and love for nature, “Flora of the Mari ASSR and issues of its protection” will be a real discovery for you. This publication is not only a source of knowledge, but also a call to action, a reminder that the preservation of nature is the business of each of us. Inspiring and informative, it will help to understand why it is so important to protect the unique natural resources of the region, and how you can contribute to their preservation. The authorial team that created this work has rich research experience and a passion for nature, which is felt on every page. Their style is a harmonious combination of scientific rigor and a lively, emotional approach, which makes the book not only useful, but also pleasant to read. In general, the “Flora of the Mari ASSR and the issues of its protection” is an important and timely publication, which will certainly find a response from everyone who appreciates the natural heritage of Russia and wants to contribute to its preservation.