This concise textbook offers a clear and comprehensive introduction to thermodynamics, one of the core components of undergraduate physics courses.  It follows on naturally from the previous volumes in this series, defining macroscopic variables, such as internal energy, entropy and pressure, together with thermodynamic principles. The first part of the book introduces the laws of thermodynamics and thermodynamic potentials.  More complex themes are covered in the second part of the book, which describes phases and phase transitions in depth. Ideally suited to undergraduate students with some grounding in classical mechanics, the book is enhanced throughout with learning features such as boxed inserts and chapter summaries, with key mathematical derivations highlighted to aid understanding.  The text is supported by numerous worked examples and end of chapter problem sets.  About the Theoretical Physics series Translated from the renowned and highly successful German editions, the eight volumes of this series cover the complete core curriculum of theoretical physics at undergraduate level. Each volume is self-contained and provides all the material necessary for the individual course topic. Numerous problems with detailed solutions support a deeper understanding.  Wolfgang Nolting is famous for his refined didactical style and has been referred to as the German Feynman in reviews.