From Artstor Help
By Email
If you are already an ARTstor participant, please contact: userservices@artstor.org
If you are interested in ARTstor or have general questions, please contact: participation@artstor.org
By Phone
Tel: 888.278.0079 (USA only)
Tel: 212.500.2400
Fax: 212.500.2401
By Post
ARTstor
151 East 61st Street
New York, NY 10065