This book was a very good guide for the subject of heat transfer; however, it lacked the ability to DEFINE things. It focuses more on the calculation and design aspect of the subject, which I think it dealt with excellently; however, it tends to ignore the idea of introductions and definitions. As an introductory course of heat transfer, where a student is not very familiar with the concepts of heat transfer, I believe this book NEEDS to be paired up with another one for better understanding.