Cube bookcases are based on hollow-cube design -- one of the most space-efficient forms for storage. You can have a wide range of configurations -- from a single cube that can also be your movable low table - to multiple horizontal and vertical configurations. Innovations in this style include in-built cubical bookcases that utilize recessed areas such as the space below the staircase.
Being a modular design, the sizes of cubes are variable. A basic cube is of 14"H X 14"W X 14"D. Material for cubical bookcases is wood or processed wood such as hardboard or planks.
Cube bookcases are perfect fit for most of the modern interiors due to its 'cube nature'.