The administration of the printed publications act by the National Archives of Zimbabwe has culminated in putting together of publications constituting a very rich information resource. The library also acquires materials that do not fall under the PPA through gift, donations and purchases. By December 2011 the general collection had grown to over 50 000 materials including books, pamphlets, and posters. Some early publications of a notable significance in the library collection include: the Portuguese books on the history of the country between 1514-1830.