Everything an Avatar Should Know About Sex is what the player should know about sex. However, all pages in the book are blank. This could have several meanings, besides the obvious joke: * People assume that the Avatar is so pure that he or she doesn't have a need for sex. * People simply can't imagine the Avatar having sex. * Of course it could also mean that that the Avatar already knows everything about sex and doesn't need to know anymore. The book shows up in Ultima VII and Ultima IX.