Well, unlike most other reviewers of this title, I haven't read Al's other books (yet). However, I did have the pleasure of attending a talk he did a couple of weeks ago, where I bought a copy of this and one of his 'accounts'. (I should have come to Amazon - cheaper ;) but it wouldn't have been signed then...)
Some other reviewers seem to be somewhat unhappy with the book. I wasn't. It's sort of a coffee-table book for those with very small sitting rooms! Nice pictures (though a note of where they were taken would be nice) with various quotes from a whole range of people, from Plato to Eminem, Jesse Jackson to Fight Club, and Muhammad Ali to Yoda. It's basically a bit of a kick up the backside for those who have a dream but haven't got any further than the dreaming stage. It's nothing radical, but doesn't claim to be either. In fact, it refers more than once to breaking dreams down into manageable chunks, and goes on the present the manageable chunks for fulfilling our dreams.
In many ways, it's a 'If I could do it, so can you' sort of book, that's coupled with a load of great pictures (proof that Al did, in fact, travel the world!)
"Don't believe what you see on the TV: the world really is a good place. A good place to set outrageous goals, to achieve them, and to make the very most out of life."
As an aside, if you have the chance to go and hear him speak, do - it's great.