Abstract: A foldable bookcase made up of two units comprising: (a) first and second units, each unit having a set of uniform sized shelves rigidly secured in spaced-apart parallel relation to and between a pair of opposed parallel, uniform-sized sideboards; (b) means for pivotally securing said first unit to said second unit to permit said first unit to be supported on said second unit with the side boards thereof aligned and also permits the back of said first unit to be folded against the back of said second unit with the side boards thereof aligned; and (c) wherein the relation of said first and second sets of shelves is such as to cause the positions of individual ones of said second set of shelves to be offset from the positions of individual ones of said first set of shelves when said first and second units are in a folded position.