I would have to second, Bill, and once again mention ,' Predator: South China Sea' - the best Predator Book ever put out by DarkHorse. 'Prey.'.. I didn't care much at all for, as it's more of a novelization of the comics.
I would like to also suggest the novelizations of the Films, 'Predator' and 'Predator 2', along with the 'AVP' novelization. If you can read with a discerning eye, you can glean a good deal of information from the screenplays by the Thomas brothers. Especially with P2, as the author ofter shares the Predator's P.O.V, concerning humans, hierarchy and culture.
~Estelle
@ Bill, ..Yes the AVP novelization was a lot better then the film. I was a nice read.