This is just what the serious bookworm needs. Each of the three cases on this finely carved three-piece bookcase has working doors and plexiglass over the openings. Each case is 1/12 scale, which is the most common scale for dollhouses and dollhouse miniatures. It means that if an object is 12 inches in real life, it is sized down to a one inch as a miniature. Each bookcase measures 3" W x 6" H x 1 3/8" D.