Abstract: A frameless convex header according to the invention is installed in a conventional gondola rack display system comprising a plurality of horizontal slots or channels in a rear wall, a top wall extending normally from the rear wall and a fascia piece at the terminal edge of the top wall. A clear, preferably transparent, plastic frameless panel has a flange at one edge secured by fasteners to the top wall behind the fascia. The opposite edge of the panel (which may or may not have a flange) is lodged in a horizontal slot or channel in the rear wall, leaving the panel in a convex shape extending from the fascia to the rear wall. Preferably the panel is made of clear plastic in 4 foot widths with a thickness of about ? inch. The plastic can be PETG or similar material.