Book excerpt: Lake Michigan, winding creeks, sprawling swamps, and one of the world’s great rivers--Illinois’s variety of aquatic habitats makes the Prairie State home to a diverse array of fishes. The first book of its kind in over forty years, An Atlas of Illinois Fishes is a combination of nature guide and natural history. It provides readers with an authoritative resource based on the extensive biological data collected by scientists since the mid-1850s. Each of the entries on Illinois’s 217 current and extirpated fish species offers one or more color photographs; maps depicting distributions at three time periods; descriptions of identifying features; notes on habitat preference; and comments on distribution. In addition, the authors provide a pictorial key for identifying Illinois fishes. Scientifically up-to-date and illustrated with over 240 color photos, An Atlas of Illinois Fishes is a benchmark in the study of Illinois’s ever-changing fish communities and the habitats that support them.