The Placentia Library collection contains texts from the 1970s to 1980s. A majority of the collection consists of a newspaper titled, the Placentia News-Times.
The Purpose of the Placentia History Collection is the acquisition, organization, and preservation of both primary and secondary materials relevant to the history of Placentia and its vicinity. As a resource center for the people of Placentia, this collection includes both historical and current information concerning the cultural, geographic, agricultural, economic, social, and political development of the Placentia area.