I bought the book from the author Tom Allen after the screening at Roll for the Soul in Bristol, partly because it seems like the right thing to do to support self-publishing, self-employed authors like this, a bit like tipping the waiter. I was very pleased at how well written the book was (it's his first book, though he's blogged a fair bit), and I would definitely recommend this to anyone, not just cycling/adventure fans (though it does come with a risk that it may inspire you to set out on your own adventure!). Very enjoyable, & highly readable (I finished it in a day).
Incidentally the book is also well designed (cover and inside typography) and well edited, much higher standard than the average self-published book. I saw that he ran a successful Kickstarter to raise money to pay for professional services in these areas, and I have to say it really shows (and I hope this isn't just special pleading as an ex-boook publisher!).