The e-book(s) you have selected will arrive in your email inbox. You should receive two files for your book(s), as follows:
Files ending in .mobi will open in your Kindle e-Reader. If you do not have a Kindle e-Reader, you can download the Kindle App for any device you use, such as a Tablet an iPad or iPhone, or your computer.
Files ending in .epub are for use in non-Kindle readers.