Introduction: Fuel Cell Operating Principles, History, Types, Components and Systems. Fuel Cell Thermodynamics and Electrochemistry: Nernst Equation, Tafel Equation, Cell Voltage, Fuel Cell Efficiency, and Losses for Operational Fuel Cell Voltages. Proton Exchange Membrane Fuel Cells: Components and System, Construction and Performance, Critical Issues and Recent Developments. Direct Methanol Fuel Cells: Fundamentals, Performance, Operational Issues and Recent Developments. Alkaline Fuel Cells: Fundamentals, Performance and Operational Issues. Phosphoric Acid Fuel Cells: Components and System, Construction and Performance, Thermal Management, Other Critical Issues and Recent Developments. Molten Carbonate Fuel Cells: Components and System, Construction and Performance, Thermal Management, Other Critical Issues and Recent Developments. Solid Oxide Fuel Cells: Components and System Construction and Performance, Thermal Management, Other Critical Issues and Recent Developments. Fuels and Fuel Processing: Fossil and Bio Fuels; External and Internal Fuel Reforming, Steam Reforming, Autothermal Reforming, Thermal Cracking, Catalysis, Desulfurization, Carbon Monoxide Removal, and Related Issues. Thermal Management and Heat Exchangers. Hydrogen Production, Storage, Safety and Infrastructure. Balance of Fuel Cell Power Plant.