"Hybrid Electric and Fuel Cell Vehicles" by Jack Erjavec is a comprehensive textbook exploring the cutting-edge technologies and advancements in hybrid electric and fuel cell vehicles. Aimed at students, technicians, and automotive enthusiasts, the book covers the principles, components, and systems crucial to understanding these innovative vehicle types. Erjavec delves into topics such as electric propulsion, battery management systems, regenerative braking, and hydrogen fuel cells, providing practical insights into their design, operation, and maintenance. With a focus on sustainability and efficiency, the book serves as a valuable resource for anyone interested in the future of automotive technology.