Based on the very successful first edition, the second edition of Cengel/Boles introduces fundamentals of thermodynamics to engineering students in an intuitive mannner. The material is presented clearly and at an appropriate level for sophomores. The text is self-instructive, thus freeing the instructor to use class time more productively. The traditional classical approach is used throughout. The text is also available with an IBM 3.5 version disk, ISBN 911652-3.