Abstract: A divider unit to support printed matter, and other objects, in a vertical orientation and whereby spacing between dividers of the unit can be easily varied. A substantially vertically oriented back member is releasable connected at its lower edge to the back edge of a base member. The base member has a support surface for the objects being held that slopes downwardly from the front edge. A plurality of dividers are held in selectable locations by the back member and the base member. This is accomplished by spaced-apart vertical slots in the back member to receive the rearward edge of the divider, and by projections in the lower edge of the divider held in spaced-apart slots in the base member. Provision is made to lock the dividers in their position to prevent inadvertent removal during removal of items therefrom. The back member is generally corrugated from top to bottom to provide the slots as well as insure rigidity. Further, a cap member is applied to the top of the back member to add rigidity.