The San Bruno Public Library provides materials and services of popular interest to the community, emphasizing and encouraging reading by children, supplementing the educational needs of the community, and furnishing timely, accurate information.
The San Bruno Public Library's digital collection at California Revealed consists of texts and images from the 1850s to the 1990s. A majority of the collection consists of photographs of locations and residents in San Bruno. Other material includes texts advertising past events and activities, such as the annual Posy Parade.