Dan Brown's The Lost Symbol, his first novel since The Da Vinci Code, has already sold more than 1 million copies after being on sale for one day in the United States, Canada and Britain, the Associated Press reported.
That total includes pre-orders for the book, which has been at or near the top of Amazon.com for months, the wire service reported:
An additional 600,000 copies has been ordered, bringing the total print run to 5.6 million copies. The Lost Symbol came out Tuesday.
Brown's book was well short of the all-time debut, Harry Potter and the Deathly Hallows, which in its first day sold more than 8 million copies in the U.S. alone.