This book is about the fundamentals of turbomachinery, the basic operation of pumps, aircraft engines, wind turbines, turbomachinery for power generation and hydro-electric machines. It compliments courses that you will be studying in these areas by concentrating on getting the basics right. Enormous emphasis is placed on relating the complex geometry of turbomachines to the fundamental analysis models used throughout the design of all turbomachinery. The simple techniques described in the book provide the basis for preliminary design of all turbomachinery and so mastering the concepts in this book provides a solid foundation for later study.