Book is a non-periodical printed publication that is available to the public. There is no page limit, but publications having 4-48 pages form a group of their own, ephemera. In addition to books distributed commercially, also studies, reports and other publications by authorities, municipalities, clubs, associations, educational establishments etc. are considered books. Material for temporary use, such as commercial prints, brochures, price lists, annual reports and programmes are not books.
Validity of the definition
- Valid until (31 December 2078)