Based on sales for the week ending March 6, 2011

16. River Marked
Patricia Briggs, Ace, $26.95, 9780441019731

17. Open City
Teju Cole, Random House, $25, 9781400068098

18. Tick Tock
James Patterson, Michael Ledwidge, Little Brown, $27.99, 9780316037914

19. An Object of Beauty
Steve Martin, Grand Central, $26.99, 9780446573641

20. While Mortals Sleep
Kurt Vonnegut, Delacorte, $27, 9780385343732

21. Gideon's Sword
Douglas Preston, Lincoln Child, Grand Central, $26.99, 9780446564328

22. Clara and Mr. Tiffany
Susan Vreeland, Random House, $26, 9781400068166

23. Murder in Passy
Cara Black, Soho Crime, $25, 9781569478820

24. I Think I Love You
Allison Pearson, Knopf, $24.95, 9781400042357

25. The Union Quilters
Jennifer Chiaverini, Dutton, $24.95, 9780525952039

26. Fall of Giants
Ken Follett, Dutton, $36, 9780525951650

27. The Confession
John Grisham, Doubleday, $28.95, 9780385528047

28. Pale Demon
Kim Harrison, Harper Voyager, $26.99, 9780061138065

29. Treachery in Death
J.D. Robb, Putnam, $26.95, 9780399157035

30. A Visit From the Goon Squad
Jennifer Egan, Knopf , $25.95, 9780307592835

31. The Secret Soldier
Alex Berenson, Putnam, $25.95, 9780399157080

32. The Oracle of Stamboul
Michael David Lukas, Harper, $24.99, 9780062012098

33. 13, Rue Therese
Elena Mauli Shapiro, Reagan Arthur Books, $23.99, 9780316083287

34. The Red Garden
Alice Hoffman, Crown, $25, 9780307393876

35. Dead or Alive
Tom Clancy, Grant Blackwood, Putnam, $28.95, 9780399157233

36. Night Season
Chelsea Cain, Minotaur, $24.99, 9780312619763

37. The Illumination
Kevin Brockmeier, Pantheon, $24.95, 9780375425318

38. The Death Instinct
Jed Rubenfeld, Riverhead, $26.95, 9781594487828

39. Night Vision
Randy Wayne White, Putnam, $25.95, 9780399157059

40. The Fates Will Find Their Way
Hannah Pittard, Ecco, $22.99, 9780061996054

41. Georgia Bottoms
Mark Childress, Little Brown, $24.99, 9780316033046

42. A Dog's Purpose
W.Bruce Cameron, Forge, $22.99, 9780765326263

43. Our Kind of Traitor
John le Carré, Viking, $27.95, 9780670022243

44. You Know When the Men Are Gone
Siobhan Fallon, Amy Einhorn Books/Putnam, $23.95, 9780399157202

45. Lord of Misrule
Jaimy Gordon, McPherson, $25, 9780929701837

46. The Lake of Dreams
Kim Edwards, Viking, $26.95, 9780670022175

47. The Thousand Autumns of Jacob de Zoet
David Mitchell, Random House, $26, 9781400065455

48. Great House
Nicole Krauss, Norton, $24.95, 9780393079982

49. The Adults
Alison Espach, Scribner, $25, 9781439191859

50. Ghost Light
Joseph O'Connor, FSG, $25, 9780374161873