The book "Ecological rehabilitation of the valleys of small rivers of Moscow" by Savin is a unique study that immerses the reader in the world of ecology and sustainable development, focusing on an important and relevant topic - the restoration of natural ecosystems in the conditions of the metropolis. This work will be interesting not only to specialists in the field of ecology and urban planning, but also to a wide range of readers who care about the state of the environment and want to understand how to improve the quality of life in cities. Savin, possessing deep knowledge in the field of ecology, offers readers not just theoretical calculations, but practical recommendations and examples of successful projects for the rehabilitation of small rivers, which were once important elements of the natural landscape of Moscow. The book examines various aspects related to ecosystem restoration: from analyzing the current state of rivers to developing strategies for their purification and restoration. The author focuses on how small rivers affect the ecological balance in cities and what role they play in the life of local communities. The book will be especially interesting to those who are fond of ecology, environmental activities, as well as those who just want to learn more about how to improve the environmental situation in their city. Students, graduate students and young scientists will find in it a lot of useful materials for their research, and activists and volunteers will be able to get ideas for implementing their own projects to restore natural resources. The topics raised in the book cover a wide range of issues, from the impact of anthropogenic activities on ecosystems to the importance of preserving biological diversity. Savin is not afraid to raise the pressing issues related to water pollution, climate change and the need for an integrated approach to solving environmental problems. It encourages readers to think about how each of us can contribute to improving the state of the environment. Savin's style is characterized by accessibility and clarity of presentation, which allows even an unprepared reader to easily assimilate complex concepts. His previous works, such as City and Nature: Harmony or Conflict? and Ecology of Megacities, have also earned recognition for their in-depth analysis and practical focus. In the Ecological Rehabilitation of the Valleys of the Small Rivers of Moscow, the author continues to develop his ideas, offering readers not only theoretical knowledge, but also inspiration for action. The book will be an excellent addition to the library of anyone interested in ecology, urban development and a sustainable future. It can serve as a basis for discussions on how we can change our attitude towards nature in the context of urbanization. Readers looking for information on ecosystem restoration, sustainable development, and urban ecology will surely find much useful and inspiring in this work. Thus, the Ecological Rehabilitation of the Valleys of the Small Rivers of Moscow is not just a book about nature, but a call to action that resonates in the hearts of those who want to see the world cleaner and more harmonious. This work will be an important step towards the realization of our responsibility for nature and will help each reader to contribute to the common cause.