Can be download after paid.

All ebooks are guaranteed to be sent to customers’ email address within 24 hours after paid, usually can download immediately after paid. Customers can email us for urgent order, we will reply ASAP.

If you don’t receive the download link or have trouble when download file, please contact us at our Email address: [email protected] we would send you an alternate download link as soon as possible.


This is an electronic/PDF version of the textbook. A physical copy of the textbook will NOT be mailed.

Advantages of a PDF file:
Low Cost
Full textbook, no missing pages
Ability to use the keyboard (control+F) to look for certain keywords or answers
Ability to print select pages
Can be put on a USB