I read that for the first time about a year ago, good book
That's cool, Mr. Bill! Because of my obsession with FIRST BLOOD (and by enlarge, all four RAMBO films), I have three editions of the paperback novel. The book is very different to the film but still an amazing read. If you ever get the chance, check out David Morrell's novelizations of RAMBO: FIRST BLOOD PART II and RAMBO III; they add a lot more depth to the stories, including loads of stuff that was probably in the original screenplays that never made it into the films.