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For live help, you can reach World Book Online Customer Support Monday through Friday from 8 a.m. to 5 p.m. CST by calling 800-338-8382.

World Book, Inc.
ATTN: Customer Support
180 N. LaSalle St.Suite 900
Chicago, Illinois 60601
888-922-3766 (fax for U.S. and Canada)
wboltech@worldbook.com