Fuel Cell Fundamentals is an introductory-level textbook covering the basic science and engineering behind fuel cell technology. Focusing on the fundamentals, it provides straightforward descriptions of how fuel cells work, why they offer the potential for high efficiency, and how their unique advantages can best be used. Emphasis is placed on the founding scientific principles that govern fuel cell operations. Designed to be accessible to fuel cell beginners, it is suitable for any engineering or science major with a background in calculus, basic physics, and elementary thermodynamics. The book is divided in two parts: The first (and largest part), "Fuel Cell Principles" focuses on basic fuel cell physics. The second part: "Fuel Cell Technology" provides a brief discussion of the practical applications of fuel cell technology. Fuel Cell Fundamentals provides examples, problems, and pedagogy for classroom use. A solutions manual is available.