Abstract: A utility shelf apparatus for a pick-up truck (10) of the type having a cab (12), a sliding rear cab window (16), a cargo bed (14), and a camper shell (20). The apparatus has a right lower support member (22) and a left lower support member (28) which are joined to span the full width of the cargo bed (14) and which is mounted behind the cab of the pickup truck. A right back member (48) and left back member (50), which can be transparent are joined together and attached to the rear edges of the lower support members in a vertical orientation, and includes a cutout (56) in the central area so that the driver's vision is not impaired. Articles which are placed on the support member are accessible to the driver of the vehicle from inside the cab through the sliding rear cab window (16), and are restrained from falling into the cargo bed by the back member of the apparatus. The apparatus can have a fixed width or be adjustable in width to fit a variety of pick-up truck cargo bed widths.