The application of limited amounts of water to plants at required intervals is known as irrigation. It helps in the growth of crops and in maintaining landscapes. It also plays a vital role in re-vegetating the disturbed soils in dry areas. The branch of engineering which deals with harnessing and controlling the water which is obtained from natural sources and distributing it for agricultural purposes is known as irrigation engineering. There are various types of irrigation methods such as micro-irrigation, drip irrigation, and sprinkler or overhead irrigation. Micro-irrigation uses a piped network to distribute water under low pressure. Drip irrigation is a system that drops water directly at the plant's roots. Sprinkler or overhead irrigation is a system where water is piped to the central locations within the field and distributed by high-pressure overhead sprinklers. This book provides comprehensive insights into the field of irrigation engineering. It will serve as a reference to a broad spectrum of readers. Those in search of information to further their knowledge will be greatly assisted by this textbook.