Based on sales for the week ending January 22, 2012

16. Rules of Civility
Amor Towles, Viking, $26.95, 9780670022694

17. The Litigators
John Grisham, Doubleday, $28.95, 9780385535137

18. The Rope
Nevada Barr, Minotaur, $25.99, 9780312614577

19. How It All Began
Penelope Lively, Viking, $26.95, 9780670023448

20. Hope: A Tragedy
Shalom Auslander, Riverhead, $26.95, 9781594488382

21. American Dervish
Ayad Akhtar, Little Brown, $24.99, 9780316183314

22. Death of Kings
Bernard Cornwell, Harper, $27.99, 9780061969652

23. The Flame Alphabet
Ben Marcus, Knopf, $25.95, 9780307379375

24. Breakdown
Sara Paretsky, Putnam, $26.95, 9780399157837

25. The Leopard
Jo Nesbø, Knopf, $26.95, 9780307595874

26. The Drop
Michael Connelly, Little Brown, $27.99, 9780316069410

27. Salvage the Bones
Jesmyn Ward, Bloomsbury, $24, 9781608195220

28. The Map and the Territory
Michel Houellebecq, Knopf, $26.95, 9780307701558

29. The Invisible Ones
Stef Penney, Putnam, $25.95, 9780399157714

30. Shadows in Flight
Orson Scott Card, Tor, $21.99, 9780765332004

31. Damned
Chuck Palahniuk, Doubleday, $24.95, 9780385533027

32. The Dovekeepers
Alice Hoffman, Scribner, $27.99, 9781451617474

33. The Language of Flowers
Vanessa Diffenbaugh, Ballantine, $25, 9780345525543

34. V Is for Vengeance
Sue Grafton, Marian Wood Books/Putnam, $27.95, 9780399157868

35. Jack Holmes and His Friend
Edmund White, Bloomsbury, $26, 9781608197033

36. Lunatics
Dave Barry, Alan Zweibel, Putnam Adult, $25.95, 9780399158698

37. Caleb's Crossing
Geraldine Brooks, Viking, $26.95, 9780670021048

38. Locked On
Tom Clancy, Mark Greaney, Putnam, $28.95, 9780399157318

39. Out of Oz
Gregory Maguire, Morrow, $26.99, 9780060548940

40. Vulture Peak
John Burdett, Knopf, $25.95, 9780307272676

41. The Prague Cemetery
Umberto Eco, Houghton Mifflin Harcourt, $27, 9780547577531

42. Gideon's Corpse
Douglas Preston, Lincoln Child, Grand Central, $26.99, 9780446564373

43. The Buddha in the Attic
Julie Otsuka, Knopf, $22, 9780307700001

44. Ready Player One
Ernest Cline, Crown, $24, 9780307887436

45. Private: #1 Suspect
James Patterson, Maxine Paetro, Little Brown, $27.99, 9780316097406

46. The Last Nude
Ellis Avery, Riverhead, $25.95, 9781594488139

47. Red Mist
Patricia Cornwell, Putnam, $27.95, 9780399158025

48. The Scottish Prisoner
Diana Gabaldon, Delacorte, $28, 9780385337519

49. Running the Rift
Naomi Benaron, Algonquin, $24.95, 9781616200428

50. Explosive Eighteen
Janet Evanovich, Bantam, $28, 9780345527714