We've discussed repeatedly on the last thread that there was another book too.
One of them that was apparently 10% nudity had an inscription from a fan called "Rhonda" which was written in quotation marks like it could have been a pseudonym.
There is nothing to suggest the other one, which was mostly made up of nude images of boys, including one with a boy with his legs spread and genitals on display, was personally inscribed inside by Michael Jackson.
These books were locked up in a filing cabinet in his room.
If people sent him stuff to frame him then they'd destroy them or do whatever he did with the stuff from fans that he didn't want, he wouldn't personally inscribe it and then lock them in a filing cabinet.