The United Nations General Assembly declared March 22, 1993 the first International World Water Day. International World Water Day is a reminder of how important freshwater resources are to the world. International World Water Day also serves to focus on advocating for sustainable management of freshwater resources. Since 1993, each International Water day focuses on a particular aspect of water resources. The theme in 2010 is "Clean Water for a Healthy World". Milwaukee Public Library has many books that can help you understand the issues surrounding the lack of clean water in certain areas of the globe and what can be done about it. Milwaukee Public Library also has many books for children on these topics.