The book opens with an illustrated introduction to cactus habitat and anatomy. The species are then organized by stem shape, with each account featuring detailed color photographs, specific identifying features (including spines, flowers, fruits, and seeds) and information about common and scientific names, habitat, flowering season, and more.

The photographs, range maps, and icons designating shape, conservation status, and blooming period, along with easy-to-understand descriptions, make this book a quick and friendly guide to cactus identification for botanists, amateur naturalists, and cactus enthusiasts alike.