Abstract: A corner shelf is easily mountable on and removable from a pair of walls defining a corner and a corner apex joining the walls. The corner shelf has two mutually transverse sides and a shelf apex joining the sides. The shelf is configured and dimensioned exclusively for three point installation in a corner, and is characterized by (A) only a pair of laterally spaced openings disposed on one shelf side, and (B) only a single opening on the other shelf side. Each of the openings is substantially spaced from the shelf apex, and the openings are adapted to mount the shelf in the corner. Preferably a total of only three support members project inwardly from the corner walls, and each of the openings is configured and dimensioned to at least partially receive therein a portion of a respective support member.