I can't say this is an interest of mine but it was discussed not too long ago so I thought some of you might be interested.

Road Walking: Conversations with my Coach

Download free Kindle apps to start reading Kindle books on all your devices. The Kindle app is available for every major smartphone, tablet, and computer.

I have no connection with this or any of the books or authors I post links to, nor do I have a financial interest in Amazon.com. I simply find free books that I think/hope might have some connection to backpacking and post the links. I have no control over what books are available. I do not have time to read/review every book I post. Not everyone will enjoy every book. Most books are free for a limited time, then return to their previous price.