Iowa Code § 702.22: Library materials and equipment.

1. “Library materials” include books, plates, pictures, photographs, engravings, paintings, drawings, maps, newspapers, magazines, pamphlets, broadsides, manuscripts, documents, letters, public records, microforms, sound recordings, audiovisual materials in any format, magnetic or other tapes, electronic data processing records, artifacts, and written or printed materials regardless of physical form or characteristics, belonging to, on loan to, or otherwise in the custody of any of the following:

a. A public library.

b. A library of an educational, historical, or eleemosynary institution, organization, or society.

c. A museum.

d. A repository of public records.

2. “Library equipment” includes audio, visual, or audiovisual machines, machinery or equipment belonging to, on loan to or otherwise in the custody of one of the institutions or agencies listed in subsection 1.