Dan Brown's Next Could Spark 'E-Book Revolution'

Dan Brown’s next book has a 6.5 million-copy print run—one of the biggest ever—but the Lost Symbol could mark a new chapter in the digital world, the Daily Telegraph reports. The Da Vinci Code author’s publisher says an e-book version of the novel will be released Sept. 15, the same day as the hardcover, which could help sales of e-readers soar.

“Even more than J K Rowling's Harry Potter titles, Dan Brown has shown that a book can become genuinely mass market,” said an editor. “This helped keep supermarkets' interest and helped publishers develop their methods, especially online.” But one literary agent pointed the e-book's limitations: "It's not fun to run out of power as the protagonist is about to reveal a deadly secret."