"Batman is in many ways the ultimate nerd... he is obsessed." So says author Glen Weldon, discussing his new book, 'The Caped Crusade: Batman and the Rise of Nerd Culture.'

"Hollywood learned how to really exploit the [Batman] fanbase," he tells Rose Fox of Publishers Weekly Radio,

Batman is "the ideal of American masculinity as envisioned by 12-year-olds."

Then Publishers Weekly senior writer Andrew Albanese previews the 2016 London Book Fair.