Terms and Conditions

When you purchase materials from us, you agree to the following terms and conditions.

It is strictly prohibited to use or to reproduce our materials for teaching purposes, including in tutorials, private lessons, or in a classroom setting, unless an Educational Use License is obtained from us.

If you are affiliated with an educational institution or organization and would like information on discounts on our materials, please click here for information on an Educational Use License.

The PDF and online versions of our materials, like all digital products, are protected under the Digital Millennium Copyright Act (DMCA).

In plain English, that means that only one student is permitted to use the items downloaded. You may not share the material with other users.

The PDF versions of our materials may be printed and used without a time limit.

You are allowed to save one copy of the PDFs on one computer, from which you are permitted to print one copy.

Posting the materials online is not permitted. If you do so, we will pursue legal action against you with evidence provided to us by search engine providers.

If you make a purchase on this site, your payment will be processed by our secure server.

All of our products are nontangible goods which are sent to the buyer by digital delivery. We collect your address only for our records.

We utilize IP locking, and we will disable the materials for anyone who violates our terms and conditions.

To ask a question about our materials or terms, please contact us.