"Richard E. Sonntag received his BSE, MSE and Ph.D. degrees, all in mechanical engineering, from the University of Michigan. He is a Professor of mechanical engineering at the University of Michigan and served as the department chair for eleven years. He is a fellow of the ASME and served on numerous committees within ASME and been vice chair and chair of the regional Department Heads.

Claus Borgnakke earned his MSE and Ph.D. from the Technical University of Denmark. He is an Associate Professor at the University of Michigan, where he received the Excellence in Teaching Award as well as other awards and recognitions, including the Ralph E. Teetor Award from SAE." --Amazon

"Borgnakke and Sonntag’s Fundamentals of Thermodynamics has long stood as the text of choice for an introduction to the theory and application of thermodynamics. Written from an engineer’s point of view, this updated and revised Seventh Edition of the classic text offers a comprehensive and rigorous treatment of classical thermodynamics. With concise, applications-oriented discussion of topics and self-test problems, the text encourages students to monitor their own progress and absorb the concepts step by step. " --Amazon