Alastair was on the road for over 4 years on less than 4 quid a day. Just those facts are amazing enough but I find the whole story quite incredible and in this book he tells you how he did it - meaning how he coped with it mentally and grew from the experience. That's far more important knowledge than the nuts and bolts of travel in my opinion, and he has a rare honesty and the smarts to figure out how he could make it to the end, and the ability to write it down for our benefit afterwards.
This is gritty travel, not as tourism, but to gain insights into the world, into himself, into life itself. It's powerful stuff and I can't wait for the next part of the story to be published.