In response to an increasing number of suggestions from retailers Devil's Due Publishing has decided to add Universal Product Codes (UPCs) to the covers of their comic titles starting with G.I. Joe Reloaded #5, G.I. Joe #32, and Army of Darkness: Ashes 2 Ashes #1, all of which should ship to retailers in July.  UPCs allow retailers to scan titles making for a faster checkout as well as providing a detailed receipt for customers, while giving retailers with sales information that is essential for inventory control and reordering.