The book you wish your professor had assigned. A practical guide to learning engineering thermodynamics. At 128 pages, it covers the information you need to know, but is short enough to be read realistically in one semester without falling asleep. It can be used either as a supplement to existing textbooks or a low-cost replacement for them. This textbook was designed specifically to be an eBook with full color graphs and pictures. What is unique about this book? The use of freely available online property databases rather than obsolete printed data tables to solve problems. Property tables for water and air, the two most commonly used fluids are included for verifying online databases give the correct properties. All example problems are worked in metric units - (seriously why torture students with the Imperial Unit system?) Resources provided include links to other freely available online resources, including relevant Khan Academy videos, other videos, giving the students the options to explore more in depth of the topics that of are interest to them, or that they are struggling with. This book covers the subjects typically seen in a first semester university thermodynamics course.