This comprehensive textbook covers engineering thermodynamics from beginner to advanced level. The presentation is concise, with material for about three full-term university courses on 700 pages, without compromising breadth or depth. First and second law of thermodynamics are developed from everyday observations with accessible and rational arguments. The laws of thermodynamics are applied to a multitude of systems and processes, from simple equilibration processes, over steam and gas power cycles, refrigerators and heat pumps, to chemical systems including fuel cells. Entropy and the second law are emphasized throughout, with focus on irreversible processes and work loss. Insightful development of theory is accompanied by detailed solutions of example problems, which teach the required technical skills while giving insight into the multitude of thermodynamic processes and applications. About 550 end-of-chapter problems highlight all important concepts and processes.