There is provided a knock-down bookshelf having a pair of trapezoidal base members each having front and rear slots which interlock with corresponding slots in front and rear vertical panels. When assembled, these members form a rigid base which supports a horizontal platform at a slight rearward slope so that books or similar articles placed on the horizontal platform are supported by the rear vertical panel without need for bookends or similar retaining devices. The bookshelf may be easily assembled and disassembled without need for tools.