Abstract: A display unit for media such as books, audio and video cassettes, etc. includes a rotating tower-type array of shelves and a supporting framework which is mountable to a rigid, vertically oriented panel, such as the end panel of a bookcase. The rotatable tower is mounted between the free ends of a pair of horizontal support arms which are fixedly supported at their other ends by a vertical column and a cross-arm which extends across and is fixedly attached at its mid-point to the upper end of the vertical column. A pair of U-shaped members are mounted to opposite ends of the cross-arm and are rotatable with respect thereto about the horizontal, longitudinal axis of the cross-arm. The unit is mounted to the panel by the U-shaped members passing around the side edges of the panel so that one of the legs of each member contacts the rear side of the panel while the remainder of the unit rests against the front side.