Why is Martin Sorrell not buying Richard Desmond's book?

WPP's founder and chief executive Martin Sorrell has no plans to read Richard Desmond's new book, The Real Deal, but why?

Also in the short video, Sorrell said: "Richard is not the easiest man in the world to deal with, somewhat unpredictable. At his heart, he has a heart of gold, but a somewhat tough exterior."

More on Richard Desmond's new chapter here