Professor Shen Xuewen of the Department of Civil Engineering of the United States has been associated with water throughout his life. He has been engaged in water conservancy teaching and research, project practice and consultancy work for 50 years. He has been a water consultant to the United Nations and the World Bank. He has participated in water conservancy projects in nearly 20 countries. He is an internationally renowned authority on river dynamics and a water engineer.With his valuable river management experience and data, he has made a thorough analysis of the world's key water issues of concern - world water resources conflicts; river management, flood and drought control programs; river rehabilitation, ecological and water conservancy development; the pros and cons of dam construction; and river conditions in China.He also made practical suggestions for the development of the Three Gorges Dam and the future development of China's water resources.