Abstract: A sheet fastener hinge device to removably hinge a second cumulative stack of flexible sheets to a first cumulative stack of flexible sheets. A first elongated panel has a pair of spaced holes or an elongated slot to receive the prongs of a first sheet fastener extending through a pair of apertures spaced adjacent one edge of the sheets in the first stack to removably attach the first panel to the front of the first stack. A second elongated panel has a pair of integral spaced prongs extending therefrom or a pair of spaced holes to receive a second sheet fastener to provide a pair of spaced prongs extending therefrom. The prongs extend through a pair of apertures spaced adjacent one edge of the sheets in the second stack to removably attach the second stack of sheets to the second panel.