Based on sales for the week ending December 4, 2011

16. Micro
Michael Crichton, Richard Preston, Harper, $28.99, 9780060873028

17. Kill Alex Cross
James Patterson, Little Brown, $28.99, 9780316198738

18. The Cat's Table
Michael Ondaatje, Knopf, $26, 9780307700117

19. The Best of Me
Nicholas Sparks, Grand Central, $25.99, 9780446547659

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

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

22. The House of Silk
Anthony Horowitz, Mulholland, $27.99, 9780316196994

23. Zero Day
David Baldacci, Grand Central, $27.99, 9780446573016

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

25. The Angel Esmeralda: Nine Stories
Don DeLillo, Scribner, $24, 9781451655841

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

27. The Girl Who Kicked the Hornet's Nest
Stieg Larsson, Knopf, $27.95, 9780307269997

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

29. I Am Half-Sick of Shadows
Alan Bradley, Delacorte, $23, 9780385344012

30. The Affair
Lee Child, Delacorte, $28, 9780385344326

31. The Conference of the Birds
Peter Sis, Penguin Press, $27.95, 9781594203060

32. Reamde
Neal Stephenson, Morrow, $35, 9780061977961

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

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

35. Nightwoods
Charles Frazier, Random House, $26, 9781400067091

36. The Time in Between
Maria Duenas, Atria, $26, 9781451616880

37. The Christmas Wedding
James Patterson, Richard DiLallo, Little Brown, $25.99, 9780316097390

38. Lost December
Richard Paul Evans, S&S, $19.99, 9781451628005

39. Devil's Gate
Clive Cussler, Graham Brown, Putnam Adult, $27.95, 9780399157820

40. The Lady of the Rivers
Philippa Gregory, Touchstone, $27.99, 9781416563709

41. Snuff
Terry Pratchett, Harper, $25.99, 9780062011848

42. The Sisters
Nancy Jensen, St. Martin's, $24.99, 9780312542702

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

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

45. Aleph
Paulo Coelho, Knopf, $24.95, 9780307700186

46. The Great Leader
Jim Harrison, Grove, $24, 9780802119704

47. The Snow Angel
Glenn Beck, Threshold Editions, $21, 9781439187203

48. The Keeper of Lost Causes
Jussi Adler-Olsen, Dutton, $25.95, 9780525952480

49. The Stranger's Child
Alan Hollinghurst, Knopf, $27.95, 9780307272768

50. The Impossible Dead
Ian Rankin, Reagan Arthur, $25.99, 9780316039772