In an internal combustion engine, the combustion of the fuel takes place within a combustion chamber in the presence of a suitable oxidiser (air, most often). The resultant rise in temperature and pressure from the combustion causes the movement of a specific part of the engine, the piston for example.
This book, Internal Combustion Engines, gives the fundamental concepts and the specifics of various engine designs. The information is provided in a comprehensive manner, with highly detailed sketches. The book is divided into twenty chapters, each covering different aspects of internal combustion engines.