Based on sales for the week ending December 25, 2011

16. Sing You Home
Jodi Picoult, Atria, $16, 9781439102732

17. Tinker, Tailor, Soldier, Spy
John Le Carre, Penguin, $16, 9780143120933

18. Started Early, Took My Dog
Kate Atkinson, Reagan Arthur, $14.99, 9780316066747

19. Extremely Loud and Incredibly Close
Jonathan Safran Foer, Mariner, $14.95, 9780547735023

20. Water for Elephants
Sara Gruen, Algonquin, $14.95, 9781616200701

21. A Dog's Purpose
W.Bruce Cameron, Forge, $12.99, 9780765330345

22. The Alchemist
Paulo Coelho, HarperOne, $14.99, 9780061122415

23. The Best American Nonrequired Reading
Dave Eggers (Ed.), Mariner, $14.95, 9780547577432

24. The Sweetness at the Bottom of the Pie
Alan Bradley, Bantam, $15, 9780385343497

25. Matterhorn
Karl Marlantes, Grove Press, $15.95, 9780802145314

26. The Lake of Dreams
Kim Edwards, Penguin, $16, 9780143120360

27. Fall of Giants
Ken Follett, NAL, $25, 9780451232571

28. Hotel on the Corner of Bitter and Sweet
Jamie Ford, Ballantine, $15, 9780345505347

29. Let the Great World Spin
Colum McCann, Random House, $15, 9780812973990

30. A Game of Thrones
George R.R. Martin, Bantam, $17, 9780553386790

31. The Sherlockian
Graham Moore, Twelve, $14.99, 9780446572583

32. The Postmistress
Sarah Blake, Berkley, $15, 9780425238691

33. The Elegance of the Hedgehog
Muriel Barbery, Europa Editions, $15, 9781933372600

34. A Secret Kept
Tatiana De Rosnay, St. Martin's, $14.99, 9780312553494

35. City of Thieves
David Benioff, Plume, $15, 9780452295292

36. The Invisible Bridge
Julie Orringer, Vintage, $15.95, 9781400034376

37. The Tower, the Zoo, and the Tortoise
Julia Stuart, Anchor, $14.95, 9780307476913

38. Little Bee
Chris Cleave, S&S, $15, 9781416589648

39. The Next Always
Nora Roberts, Berkley, $16, 9780425243213

40. The Imperfectionists
Tom Rachman, Dial, $15, 9780385343671

41. Shantaram
Gregory David Roberts, St. Martin's, $14.99, 9780312330538

42. The Forgotten Garden
Kate Morton, Washington Square Press, $15, 9781416550556

43. The Thousand Autumns of Jacob de Zoet
David Mitchell, Random House, $15, 9780812976366

44. Tinkers
Paul Harding, Bellevue Literary Press, $14.95, 9781934137123

45. Half Broke Horses
Jeannette Walls, Scribner, $16, 9781416586296

46. The Magicians
Lev Grossman, Plume, $16, 9780452296299

47. Great House
Nicole Krauss, Norton, $14.95, 9780393340648

48. The Guernsey Literary and Potato Peel Pie Society
Mary Ann Shaffer, Annie Barrows, Dial, $15, 9780385341004

49. The Hypnotist
Lars Kepler, Picador, $16, 9781250007582

50. The Girl Who Fell From the Sky
Heidi W. Durrow, Algonquin, $13.95, 9781616200152