Water harvesting was considered as an important aspect in the agriculture. This book explains the role of water in increasing the crop yields and its importance in associated industries. The importance of domestic rain water harvesting was explained with examples. The effect of surface runoff on the crops and farming methods was described in detail. The loss of important soil nutrients due to runoff was described. The design of the water harvesting systems was illustrated. The components needed in the water harvesting system was emphasized. Different types of water harvesting systems was explained in this book. The importance of water harvesting techniques in the developing countries was discussed in detail. The rainfed agriculture system was emphasized in this book. The role of ecosystem services in maintaining water harvesting systems was explained.