It was inevitable, really. Nobody listens to me.
From the AP:
Doubleday announced Tuesday that hardcover, audio and e-book sales for The Lost Symbol topped 2 million copies for its first week of release in the United States, Britain and Canada. The total is "well over'' 2 million for English-language editions worldwide, according to Doubleday spokeswoman Suzanne Herz, who declined to offer a specific number.
Herz did say that around 5 percent, or 100,000 copies, of The Lost Symbol were sold as e-books. Doubleday released the digital edition at the same time as the hardcover despite industry worries that e-sales might take away business from the more expensive paper text."