To request changes to an order you have already placed or for technical issues you are experiencing with the site:
Email The YGS Group
For questions regarding placing new orders, refunds or shipping inquiries:
Email AAAS or call 866-434-AAAS (2227) (in Washington, DC: 202-326-6417)
For all other questions, including AAAS Memberships and Subscriptions:
Email AAAS or call 866-434-AAAS (2227) (in Washington, DC: 202-326-6417)