"Conceal." To conceal library or museum material so that, although there may be some notice of its presence, it is not visible through ordinary observation.
"Library." Any public library, any library, archives or manuscript repository of educational, historical or eleemosynary institution, organization or society, any museum and any repository of public records.
"Library or museum material." Any book, plate, picture, photograph, engraving, painting, drawing, map, newspaper, magazine, pamphlet, broadside, manuscript, document, letter, public record, microfilm, sound recording, audiovisual materials in any format, magnetic or other tapes, electronic data processing records, display object, exhibit, work of art, artifact, or other documentary, written or printed materials regardless of physical form or characteristics, belonging to, on loan to, or otherwise in the custody of a library.
"Premises of a library." Includes but is not limited to the library and all parking areas set aside for the parking of vehicles for the convenience of the patrons of such library.
18 Pa.C.S. § 3929.1