Telephone Directories
The Library’s general collections contain the largest historical collection of U.S. telephone criss-cross (phone number and address) and city directories in the world. The Library acquires more than 8,000 volumes a year and holds more than 124,000 telephone books and microfilmed city directories from 650 U.S. cities and towns. This vast collection includes historical foreign telephone books and city directories (almost 1,500 per year received from more than 100 countries).