Customer Service Contacts
International
 Offering Houghton Mifflin Harcourt products and services to customers outside of the United States. Customer Service 636-232-2550 Mexico: 800-514-7067 US Virgin Islands & Puerto Rico: 877-714-7599 Click here For Inquiries Address HMH International 1900 South Batavia Avenue Geneva, IL 60134 www.hmhinternational.com |