If you're using an apple device, just click the download link above, and them select "open in Kindle" or "open in iBooks."
*** For iPad and iPhone, you might have to tap the download link twice.***
If you're using a different device, you may need to use a computer to download this file, then transfer to your reading app.
More instructions on how to do this can be found here:
For devices using the Kindle app: http://www.amazon.com/gp/sendtokindle
For the Nook app: http://www.barkingrainpress.org/faq/load-epub-nook
If you have any questions, give me a shout at firstname.lastname@example.org