This book differs from other thermodynamics texts in its objective, which is to provide engineers with the concepts, tools, and experience needed to solve practical real-world energy problems. The presentation integrates computer tools (e.g., EES) with thermodynamic concepts to allow engi­neering students and practicing engineers to solve problems that they would otherwise not be able to solve. The use of examples, solved and explained in detail and supported with property diagrams that are drawn to scale, is ubiq­uitous in this textbook.