I've had this conversation with my wife - epic books last more than a generation and enshrine their authors in the history books for eternity. Sure, Glenn Beck is very popular right now. As popular as he is controversial. But it I feel that his latest book is going to catapult him to a new stature.
The Overton Window
(sold on Amazon for $14 right now)
Check out his trailers:
(if the video fails to load, here's a link)
I'm pretty sure the critics have already made up their minds before reading.