This informative and entertaining book details for a broad readership the agaves and cacti of the world--plants that have been consumed by humans for at least 9000 years. In discussing the unique physiology and the past, present, and potential future uses of agaves and cacti, the book covers a diverse range of topics, from how the agave is used in a variety of beverages to how cacti are raised for cattle fodder. The book also explains how these plants have adapted to the harsh conditions of the desert, looks at the high productivity of certain agaves and cati from a cellular level, and examines the plants' remarkable ability to withstand both extremely high and low temperatures, among numerous other topics. Plant enthusiasts (especially members of cactus and succulent societies), plant biologists, policy makers, and interested general readers will find this book clear and inviting.