This is an excellent little textbook on classical thermodynamics. This book was originally a set of lecture notes for a graduate level physics class taught at the university of Chicago. Dr. Fermi does an excellent job explaining the basic principles of thermodynamics and the exercises provided are enjoyable to work. As a graduate student, I worked feverously though this book, and recently turned my notes into somewhat of a study guide and solution manual for the book. Below, I am including both the current state of my write up and my original handwritten notes. My hope is that this work will be found beneficial to others.