"I Know My Body - Circulatory System and Breathing" is an informative textbook aimed at learners who want to know more about how the human body functions. This book is part of a series that covers various aspects of the human body, including nutrition, digestion, skeleton, muscles, and spine. With a clear and engaging layout, the book provides a wealth of information about the circulatory system and breathing, which are fundamental to understanding human physiology. The content is presented in a way that is suitable for both classroom use and independent study. The author, Katrin Langhans, has made it her mission to make complex topics understandable and accessible, making the book a valuable tool for students. The paperback cover ensures high durability, while the German language guarantees accessibility for the target audience.