The bestselling books of 2013 across all print formats were “Hard Luck” by Jeff Kinney, “Inferno” by Dan Brown, “Killing Jesus” by Bill O’Reilly and Martin Dugard, and “Proof of Heaven: A Neurosurgeon’s Journey To the Afterlife” by Eben Alexander. These rankings are based on Nielsen BookScan which tracks 80 percent of print sales.
“Hard Luck” is the eighth volume in the “Diary of a Wimpy Kid” series that follows the exploits of Greg Heffley and his best friend Rowley Jefferson. It was the bestselling print book of 2013 and has sold a total of 1.8 million copies as of November 2015.
“Inferno” is a detective thriller that features the return of detective Robert Langdon. It ranks as the second bestselling work of fiction and the second bestseller for the year overall.
“Killing Jesus” was the best selling non-fiction work and no. 3 overall for the year, selling 1.1 million copies. It tells the story of the events leading up to and following the death of Jesus of Nazareth.
"Proof of Heaven" is the second bestselling non-fiction title and fourth bestselling book overall. It tells the story of a neurosurgeon who becomes ill and slips into a coma for a week. While he is unconscious, he has a near-death experience that ultimately lets him reconcile scientific principles with his religious beliefs and changes his approaches to life and medicine.