For the second week in a row, Marcus Luttrell and Patrick Robinson's Lone Survivor was the top selling book on Apple's iBooks bestseller list. A film adaptation of the 2007 title about a Navy SEAL mission hit theaters on January 10. Duty, by former defense secretary Robert M. Gates, jumped from #8 to the #2 spot, for the week ended January 20.

Once again, all three titles in Veronica Roth's Divergent series landed in the top 5. New to the list this week was Michael Connelly's original short story, Switchblade (released on January 14 and priced at $0.99), at #10.

Top Paid Books

1. Lone Survivor by Marcus Luttrell & Patrick Robinson (Little, Brown and Company)

2. Duty by Robert M. Gates (Knopf Doubleday Publishing Group)

3. Insurgent by Veronica Roth (Katherine Tegen Books)

4. Divergent by Veronica Roth (Katherine Tegen Books)

5. Allegiant by Veronica Roth (Katherine Tegen Books)

6. The Goldfinch by Donna Tartt (Little, Brown and Company)

7. The Fault in Our Stars by John Green (Penguin Group US)

8. Sycamore Row by John Grisham (Knopf Doubleday Publishing Group)

9. Gone Girl by Gillian Flynn (Crown Publishing Group)

10. Switchblade by Michael Connelly (Little, Brown and Company)

11. Ruined by Tracy Wolff (Random House Publishing Group)

12. Command Authority by Tom Clancy & Mark Greaney (Penguin Group US)

13. Twelve Years a Slave by Solomon Northup (Atria / 37 Ink)

14. First Love by James Patterson & Emily Raymond (Little, Brown and Company)

15. The Invention of Wings by Sue Monk Kidd (Penguin Group US)

16. Flowers In The Attic by V.C. Andrews (Pocket Books)

17. The Gods of Guilt by Michael Connelly (Little, Brown and Company)

18. The Book Thief by Markus Zusak (Random House Children's Books)

19. The Wolf of Wall Street by Jordan Belfort (Random House Publishing Group)

20. Heat Wave by Richard Castle (Hyperion)