Fast Facts about Columbia University Libraries

What’s in the Libraries

• 10.4 million volumes
• 144,787 current serial subscriptions
• 6,379,196 microforms
• 26 million manuscripts and 979,096 rare books
• 156,717 videos, DVDs, CDs, sound recordings
• 174,032 government documents

Who’s in the Libraries

• 3.5 million people visit the Libraries per year
• 130 librarians
• 185 administrative & support staff
• 300-400 part-time student employees per year

How Many

• 22 Columbia and affiliated libraries
• 246 miles of books and other items
• 34,000 items checked out per month
• 34,000 items renewed per month
• 152,000 items added to the collections per year
• 171,000 questions answered at service desks or via email
• 6,520,000 titles listed in CLIO, the Libraries online catalog
• 42,233,084 hits on the Libraries website per year
• 351,355 hits on e-reserves per year
• 1,490 library workshops, classes or tours offered per year

A Click Away

• 850 databases
• 115,000 e-journals
• 1,014,000 e-books
• 645,000 e-images