There's quite a bit of pictures in her book, and its a nicely written book, if not slightly biased.
I think her pics on her website are different than the ones in the book. In fact, May Pang has tons of other pictures she took of John with Julian that none of us have seen, and she is currently working on a coffee table book where she will put those pictures. I think I read somewhere that she is doing it for Julian, to show him how much John really did love him.