Since the 1940s, Charley Harper's modernist illustrations have appeared in countless formats, from cookbooks and magazines to massive mosaics and nature posters. The Cincinnati-based artist, who died in 2007, has a dedicated cult following among his hometown audience and naturalists, but it wasn't until designer Todd Oldham rediscovered his work that Harper mania expanded to the broader public. In the past five years, museum exhibitions, national press and Oldham's 2007 monograph, Charley Harper: An Illustrated Life, have explored Harper's simple style and his artwork has found new life animating products, from fabrics to dinnerware.