Book excerpt: The 24-page Layperson's Guide to California Water provides an excellent overview of the history of water development and use in California. It includes sections on flood management; the state, federal and Colorado River delivery systems; Delta issues; water rights; environmental issues; water quality; and options for stretching the water supply such as water marketing and conjunctive use. The guide also includes a useful chronology of California water history. An excellent basic reference tool to California water, the Layperson's Guide to California Water complements the California Water Map.