The Audit Bureau of Circulations is a non-profit organization established in 1914. It audits circulation, readership, and audience information for the magazines, newspapers, and other publications produced by its members.
Membership is mostly within the United States and Canada, and comes from the media and advertisers. Universities and other organizations can join as associate members.
The Bureau is a member of the International Federation of Audit Bureaux of Circulations cooperative.
