The Herb Caen Magazines & Newspapers Center holds thousands of current and historical magazines, newspapers, phone books and San Francisco city directories. The wealth of information found in this collection of popular periodicals and scholarly journals - which supplements and enhances all the subject areas found in the library - is used by the general public, students, researchers and genealogists. The collection is weeded based on significance of title, usage and maintaining existing collection strengths. Magazines: More than 10,000 titles of which over 5,000 are current subscriptions, some dating to the 18th century; back issues of popular magazines and trade and scholarly journals. Current Newspapers: More than 150 English-language newspapers from San Francisco, the San Francisco Bay Area, California, major U.S. cities; newspapers from England, Canada, Australia, India and other countries. San Francisco Newspapers on Microfilm: Archival collection of San Francisco newspapers on microfilm from the mid-1800s to the present. Other Newspapers on Microfilm: Past years of The New York Times, Los Angeles Times, The Times (London) and other major national newspapers. San Francisco City Directories: From 1850 to 1982. San Francisco Phone Directories: From 1899 to the present. National and International Phone Directories: Current collection representing various countries and selected cities in all 50 states, with a focus on the Bay Area and California. Criss+Cross (Reverse) Directories: Haines directories for San Francisco (1976 to the present) and San Mateo County (1977 to the present); current street address telephone directories for Marin County and Oakland.