Does he write his own books, though? [0] [1] [2]
It's his name on the front of the book, but he is not necessarily the primary author. That sounds a little unethical to me.
[0] https://www.express.co.uk/entertainment/books/380231/James-P...
[1] https://theconversation.com/why-you-dont-need-to-write-much-...
[2] https://www.independent.co.uk/arts-entertainment/books/featu...