The book “Measurement of wind at altitudes of 90-100 km by ground methods” by the authors of Portnyagin and Sprenger is a fascinating and in-depth study that opens up a world of high atmospheric layers to the reader, where the wind behaves completely differently than at our usual heights. This work will be a real discovery for everyone interested in atmospheric physics, meteorology and aerodynamics, as well as for students and specialists in the field of geophysics and related sciences. The authors, Portnyagin and Sprenger, known for their scientific research and publications, offer the reader a unique look at methods for measuring wind in the stratosphere and mesosphere. The book examines in detail the current technologies and approaches used to collect data on wind flows at altitudes of 90-100 km, where traditional methods become ineffective. This edition is not only informative, but also exciting, because it immerses in atmospheric phenomena, which remain a mystery to many. The book will be of interest to both professional meteorologists and climatologists, as well as students studying atmospheric sciences. It will also attract the attention of researchers working in the field of aerospace technology and ecology. If you are interested in climate change, the influence of the atmosphere on terrestrial processes or just want to expand your knowledge of how our planet functions, this publication will become a real storehouse of information for you. The topics raised in the book cover a wide range of issues, ranging from atmospheric physics to practical aspects of the application of the data obtained. The authors consider the influence of winds on climate change, as well as their role in the formation of various atmospheric phenomena, such as storms and hurricanes. The book also addresses issues related to flight safety and satellite operations, making it relevant in the context of modern technology. The style of the authors is distinguished by clarity and accessibility, which allows even readers without deep knowledge in the field of physics to understand complex concepts. Portnyagin and Sprenger use many illustrations and graphics, which makes the material more visual and understandable. Their previous works, such as Atmospheric Processes and Their Impact on Climate and Remote Sensing Technologies, have also been recognized for their scientific rigor and accessibility. The book “Measurement of wind at altitudes of 90-100 km by ground methods” is not just a scientific publication, but a real find for everyone who seeks to understand how the forces of nature work at altitude. It inspires further research and discovery, emphasizing the importance of studying the atmosphere for the future of our planet. If you are looking for a book that combines scientific rigor and a fascinating style of presentation, this work will be an excellent choice for you. Do not miss the opportunity to immerse yourself in the world of high atmospheric layers and discover new horizons of knowledge. This book is your key to understanding the complex processes that affect our lives and the world around us.