Thanks for the warning I just purchased Poser 4 because of the special price and relatively low upgrade price for 5 if I want to upgrade later. I was going to go to amazon to buy a book on poser (I have had good luck with my Carrara books) but I will steer clear from mortimers book. I will try to get the other book you mentioned is that good at learning poser 4 (especially for a beginner poser user)