Bag book

A bag book constructed of standard paper grocery bags comprising a plurality of bags each open at the top, and closed at the bottom, left and right edges, said left and right edges having side bellows enabling forward-rearward expansion, the bottom edge of the bag being folded upwardly to define an upwardly facing edge forming an auxiliary pocket in addition to a main pocket in the open top of the bag, the bottom of the main pocket being the bottom crease in the bag after said upward folding, said bags being bound together along said left edge, including the left end of said upwardly facing edge, the right end of said upwardly facing edge being fastened to said bag edge to form said auxiliary pocket.

A book comprising a plurality of pages bound together, each page having front and rear walls and left and right side walls, said left and right side walls having bellows therein enabling forward-rearward expansion, each said bellow being formed by a pair of outer creases and an inner crease with sheet-like side wall sections therebetween, the bottom of said page being folded upwardly, the left edge of said page being bound with the other said pages by binding means attached to each of said outer creases of said left edge and to each of said outer creases of the upwardly folded portion of said left edge, and means fastening only one of said outer creases of said right edge to the upwardly folded portion of said right edge adjacent thereto, such that said inner crease and said other outer crease of said right edge are free to expand away from said one outer crease of said right edge.