Abstract: A collapsible book rest includes a first panel having a transversely medially located rectangular opening and divided into similar side sections by a medially longitudinally extending self hinge, a rectangular second panel self hinged to the rear edge of the opening and divided into side by side and end to end sections by a transverse self hinge and a medial longitudinal self hinge colinear with the first panel longitudinal hinge. Follower slides project transversely from the front corners of the second panel and slidably engage tracks along the opening side edges and separably engage detents along the track to releasably lock the first panel sections in coplanar positions and the second panel in a depending dihedral defining position.