The only book I've seen worth the time it takes to read is the rather good "Poser 4 Pro Pack f/x & Design" by Richard Schrand (Coriolis Press) ISBN 1-58880-099-7 It.s got a lot for non-ProPack users. (There are a couple of books by Shamms Mortier, also, but they're generally held in very low esteem by people who've bought them, according to previous posts here.) I've honestly gotten a lot more from printing out Tutorials from online than from any Poser Book. (I like hard copy refs, also:-))