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Headquarters
222 Berkeley Street
Boston, MA 02116
Tel: 617.351.5000

Midwest Center
3800 Golf Road, Suite 100
Rolling Meadows, IL  60008
Tel: 630.467.6100

Sales Inquiries
Tel: 1.888.242.6747

Customer Support Inquiries
For information or questions about:
Status of your order
School Product Returns
E-mail: schoolcustomerservice@riverdeep.net
Monday – Friday 9:00 am - 5:00pm EST.
Tel: 800.825.4420
Fax: 866.627.1403

Product Support Inquiries:
E-mail: hmlt_support@hmco.com
Monday – Friday 7:00 am - 6:00pm CST
Tel: 888.327.2906
Visit http://support.hmlt.hmco.com
for online support resources.

Digital Products Research
& Development
Houghton Mifflin Harcourt
Ashford House
Tara Street, Dublin 2, Ireland
Tel: +353 1 240 5900

International
HMH International Publishers
2nd Floor, Ashford House,
Tara Street, Dublin 2, Ireland