What is the altogether mysterious "ghost sign?" Simply put, it is a painted advertisement on a building, most prominent prior to the 1930s. Many of these advertisements appear on brick walls in urban settings. This unique collection came out of a partnership between the University of Louisville Libraries and the school's Fine Arts department. Students in a course titled Documentary Photography explored different neighborhoods in Louisvlle, and they took over 200 photographs of various ghost signs. 122 of those images were selected for inclusion in this digital collection, and they are all available here. Visitors can browse the images at their leisure and also use the interactive map of sign collections. Some of the signs are particularly interesting, such as the H.G. Young Druggist sign and the one for the Acme Wholesale Furnace supply.