(1) There is exempted from the taxes imposed by this chapter the sale or purchase, or the storage, use or other consumption of literature, pamphlets, periodicals, tracts and books published and sold by an entity qualified under section 501(c)(3) of the internal revenue code; no part of the net earnings of which inures to the benefit of a private individual or shareholder.
(2)  As used in this section, "literature" includes information available in alternative forms, including audio-visual and magnetic, optical or other machine-readable media.