Can be download Immediately after paid

All ebooks are guaranteed to be sent to customers’ email address within 15 min – 6 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: , we would send you an alternate download link as soon as possible within 15 min – 24 hours


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