Based on sales for the week ending December 30, 2012

16. NW
Zadie Smith, Penguin Press, $26.95, 9781594203978

17. The Art Forger
B.A. Shapiro, Algonquin, $23.95, 9781616201326

18. A Hologram for the King
Dave Eggers, McSweeney's, $25, 9781936365746

19. The Forgotten
David Baldacci, Grand Central, $27.99, 9780446573054

20. The Time Keeper
Mitch Albom, Hyperion, $24.99, 9781401322786

21. Fairy Tales from the Brothers Grimm: A New English Version
Philip Pullman (Ed.), Viking, $27.95, 9780670024971

22. Mr. Penumbra's 24-Hour Bookstore
Robin Sloan, FSG, $25, 9780374214913

23. Back to Blood
Tom Wolfe, Little Brown, $30, 9780316036313

24. A Wanted Man
Lee Child, Delacorte, $28, 9780385344333

25. A Dance With Dragons
George R.R. Martin, Bantam, $35, 9780553801477

26. Merry Christmas, Alex Cross
James Patterson, Little Brown, $28.99, 9780316210683

27. Where'd You Go, Bernadette
Maria Semple, Little Brown, $25.99, 9780316204279

28. Blasphemy
Sherman Alexie, Grove Press, $27, 9780802120397

29. Live By Night
Dennis Lehane, Morrow, $27.99, 9780060004873

30. Phantom
Jo Nesbø, Knopf, $25.95, 9780307960474

31. Threat Vector
Tom Clancy, Putnam Adult, $28.95, 9780399160455

32. The Dog Stars
Peter Heller, Knopf, $24.95, 9780307959942

33. The Last Man
Vince Flynn, Atria, $27.99, 9781416595212

34. Beautiful Ruins
Jess Walter, Harper, $26.99, 9780061928123

35. The Light Between Oceans
M.L. Stedman, Scribner, $25, 9781451681734

36. The Panther
Nelson DeMille, Grand Central, $27.99, 9780446580847

37. Cross Roads
Wm.Paul Young, Faithwords, $24.99, 9781455516049

38. Notorious Nineteen
Janet Evanovich, Bantam, $28, 9780345527745

39. Canada
Richard Ford, Ecco, $27.99, 9780061692048

40. Cold Days
Jim Butcher, Roc, $27.95, 9780451464408

41. The Secret Keeper
Kate Morton, Atria, $26.99, 9781439152805

42. The Twelve
Justin Cronin, Ballantine, $28, 9780345504982

43. The Hobbit
J.R.R. Tolkien, Houghton Mifflin Harcourt, $25, 9780618968633

44. The Orchardist
Amanda Coplin, Harper, $26.99, 9780062188502

45. In Sunlight and in Shadow
Mark Helprin, Houghton Mifflin Harcourt, $28, 9780547819235

46. The Testament of Mary
Colm Tólbín, Scribner, $19.99, 9781451688382

47. Mrs Queen Takes the Train
William Kuhn, Harper, $25.99, 9780062208286

48. Two Graves
Douglas J. Preston, Lincoln Child, Grand Central, $26.99, 9780446554992

49. The Bone Bed
Patricia Cornwell, Putnam Adult, $28.95, 9780399157561

50. Broken Harbor
Tana French, Viking, $27.95, 9780670023653