COMBUSTION: Fundamentals and Application has been written as an introductory text on combustion. It starts with a discussion on fuels and their properties including new and alternative fuels followed by a comprehensive coverage of stoichiometry, thermochemistry, chemical kinetics and transport phenomena to elucidate the basic theory on the subject. Eloquent treatment has been given on combustion phenomena of gaseous, liquid and solid fuels covering detailed analysis and distinct characteristics. The book goes on to deal with applied topics, like combustion in engines and combustors, pollutant formation in combustion and their mitigation measures and various combustion diagnostic techniques. An exclusive treatment of energy based analysis of combustion has also been introduced at the end. There are well designed problems given as solved examples and end of chapter exercises to clarify concepts explained in the chapters. The book will benefit students of mechanical engineering, energy technology, chemical engineering and aerospace engineering. The content of the book can largely be covered in a one-semester course by choosing suitable chapters and sections, depending on the level at which it is used.