Norman's previous Stones book was a hack job and he's got plenty of press attention ever since as some kind of 'definitive' Stones biographer as it seems every time they're in the news they trot him out as some kind of authority.
Each tour, he rushes out a hurried 'updated' version which is sloppily researched and which probably took him about 10 minutes to cover a period of about five years.
I'm sure the next opus will be a real cracker.
His Beatles bio "Shout!" was pretty good, though.