Could you please clarify commercial use of our own PDF materials to create and sell as a flip book is not permitted? The terms specify that restricted to personal use only.

3. Copyright notice
Unless we expressly state otherwise, the copyright and any other intellectual property rights, including but not limited to design rights, trade marks and patents appearing anywhere on this website remain our property, whether owned by or licensed to us.

You may not use any of the material on this website without our prior written permission for your own commercial purposes, whether by reproducing, copying, downloading, printing, linking to, editing, broadcasting, distributing or otherwise. You may use it for your own personal non-commercial use.

ALSO what is the limit of LTD customers

8. Fair Usage
To our current fair use limit of 999 books.