This book provides an accessible yet thorough introduction to thermodynamics, crafted and class-tested over many years of teaching. Suitable for advanced undergraduate and graduate students, this book delivers clear descriptions of how to think about the mathematics and physics involved. The content has been carefully developed in consultation with a large number of instructors, teaching courses worldwide, to ensure wide applicability to modules on thermodynamics. Modern applications of thermodynamics (in physics and related areas) are included throughout — something not offered to the same degree by existing texts in the field. This new edition has been fully updated, each chapter has been rewritten with an emphasis on increased clarity for the reader. Chapters include expanded coverage of chemical thermodynamics, phase transitions, and non-equilibrium thermodynamics. Split into two parts, part I emphasizes the structure of thermodynamics as a theory, in preparation for a study of statistical mechanics. Part II contains additional topics not normally found in books at this level, such as the Caratheodory formulation of entropy, Negative-temperature thermodynamics, information theory and black hole thermodynamics. Key Features:Presents a sophisticated approach to the subject that is suitable for advanced undergraduate students and aboveIncludes modern applications of thermodynamics throughoutAccompanied by companion volumes on statistical mechanics, which can be used in conjunction with this book on courses which cover both thermodynamics and statistical mechanics