US Patent 8104733 Book rest

A collapsible book rest is formed of panels that are variously interconnected by means chosen from hinges, tracks, slots, ledges, and the like that allow the panels to be deployed to form a first, supporting structure. The panels include a rear panel, front panel, top panel, bottom panel, left panel and right panel. A slidable stabilizer panel is extendable and retractable from the bottom panel. The front and bottom panels of the supporting structure define a recess that accommodates an individual's abdominal shape, and the slide stabilizer defines a similarly shaped front edge. The book rest is collapsed by variously disconnecting and folding over the panels.