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Contact Us by Mail

Letters: PO Box 1400, Downers Grove, IL 60515
Packages: 430 Plaza Dr, Westmont, IL 60559

Contact Us by Telephone

Orders: [1] 630.734.4111
Customer Service: [1] 630.734.4111
Receptionist: [1] 630.734.4000
Automated Phone System: [1] 630.734.4100

Contact Us by Fax

Orders: [1] 630.734.4350
Other Documents: [1] 630.734.4200

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Visit Our Office Bookstore

9 am to 5 pm CST/CDST
Monday through Friday, excepting holidays
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