This book blew me away. I had not heard this alternate theory of mankind's evolution but it makes a kot of sense. The author writes in a style that readslike a novel. A bit of his science is off (sounddoes not carry in space and I disagree with his take on contempory religion but otherwise I found that this argument has changed the way I view myth and legends. Highly recommended but the copy I got will stay with me until it has made the rounds of about a dozen folks I can think of now.