The epub format below is for your Apple and Android devices including Send-to-Kinde.
As you may know, Amazon has changed to the epub format to use with the Send-to-Kindle program. A great feature of the Send-to-Kindle program is that the file will go directly to your Library folder, and not have to be searched for in ES File Explorer or another app. If you use the mobi format in Send-to-Kindle, you will now get an error message. You can see instructions about Send to Kindle at https://www.amazon.com/gp/sendtokindle/email.
If you or your students want to download directly from this web site to an Amazon device, you can use the mobi format below. When you find the mobi file in ES File Explorer, it will then open in the Kindle app on your tablet. If you download an epub file to your Amazon tablet, it will also open if you have an app such as Overdrive on your tablet. The Kindle app offers an excellent reading experience to start with. Overdrive may need some customization of font size. Download mobi file here.