an expandable display including a central member and two end pieces , the central member including fingers extending laterally from each side , the end pieces each having fingers extending laterally towards the central member , the fingers of the end pieces slidingly engaging the fingers of the central member , permitting the width of the display to be varied by relative sliding movement between the central member fingers and the end piece fingers . each of the end pieces may include a hinged back for receiving and holding a display card . the central member may include a clamp at the rear for securing the display to another structure .