Although the focus of this textbook is on traditional thermodynamics topics, the book is concerned with introducing the thermal-fluid sciences as well. It is designed for the instructor to select topics and seamlessly combine them with material from other chapters. Pedagogical devices include: learning objectives, chapter overviews and summaries, historical perspectives, and numerous examples, questions, problems and lavish illustrations. Students are encouraged to use the National Institute of Science and Technology (NIST) online properties database.