Contacts for ATP Assessments and High Noon Books (U.S.)

Note: Customers outside the United States should see our International Distributors list to locate a distributor in their own country.
Purchase Order Sales

New Orders

To place an order using a purchase order, email us at

Purchase Order Status

For questions about an order you placed, email us at

Please reference your PO number, bill-to name, and address (including Zip Code).

Click here for more information about quotes and purchase orders.

Prepaid Web Orders

Web Order Status

For questions about an order you placed on our website, email us at

Please reference your bill-to name, address (including Zip Code), and Web Order Number (example W-107298).

Mailing Address and Phone Numbers

Mailing Address

Academic Therapy Publications / High Noon Books
20 Leveroni Court
Novato, CA 94949-5746


800 422-7249 (within USA)
415 883-3314 (International)


888 287-9975 (within USA)

Product Questions and Feedback

General Questions

For additional information about any of our products or suggestions for new products, email us at

Assessment Products and Testing Questions

For questions about tests and assessment products, email us at

eBooks and Audio Books

For questions about our eBooks or Audio Books, email us at

Website Feedback

If you have any difficulties using our website or have any suggestions regarding features etc., email

Mailing List Removal

To be removed from our catalog mailings Click Here