Abstract: A direct-mail advertising package includes an acceptance form and a return mailer envelope. The acceptance form and envelope are disposed between a front and back cover, each of which may bear a promotional message. The respective peripheral edges of the package (or other peripherally-disposed portions of the package) are glued together, preferably intermittently, so that the integrity of the package may be maintained during mailing. The front and back covers are integrally joined to form a spine alongside an edge of the package, and recessed index tabs are formed on the package opposite to the spine, so that the package may be "popped" open against its adhesive retention.The acceptance form is perforated, and when torn away from the package, has outer dimensions which are less than the corresponding inside dimensions of the envelope; thus the acceptance form may be slipped easily into the envelope without folding the acceptance form. If desired, the acceptance form is made from a relatively-thin paper stock.

Abstract: An integral multiple use message unit package having a display surface and a plurality of individual message units removably adhered to the backside of the display surface. In one embodiment, the individual message units may be adapted to be filled out with a message and an address, stamped and mailed. Upon receipt, the top message unit with the message can be removed by the recipient, revealing a fresh message unit and allowing the process to be repeated. In another embodiment of the invention, the message unit package is for direct mail advertising and the individual message units may be post cards having advertising material printed on one side and postage and the advertiser's address printed on the other side. Thus, the recipient of the advertisement may conveniently indicate on the appropriate message unit, or post card, his level of interest in the goods or services offered and mail it back to the sender.