Abstract: Brackets for mounting articles, such as shelves or panels, to a vertical wall or other supporting structure comprise first and second mutually orthogonal bracket portions to be secured, respectively, to the undersurfaces of the articles and to the walls. A keyhole shaped slot formed in one of the bracket portions enables the bracket to be conveniently coupled to a supporting screw anchored in the wall. The remaining bracket portion is secured to the undersurface of the shelf by screws or is coupled to a supporting screw by a keyhole shaped slot in the second bracket portion. Several different bracket embodiments enable systems of shelves or panels to be assembled by individuals having very little mechanical skill.