Based on sales for the week ending December 18, 2011

16. Guinness World Records 2012
Guinness, $28.95, 9781904994671

17. Arguably
Christopher Hitchens, Twelve, $30, 9781455502776

18. Food Rules
Michael Pollan, Maira Kalman (Illus.), Penguin Press, $23.95, 9781594203084

19. Destiny of the Republic
Candice Millard, Doubleday, $28.95, 9780385526265

20. The Greater Journey
David McCullough, S&S, $37.50, 9781416571766

21. Bossypants
Tina Fey, Reagan Arthur, $26.99, 9780316056861

22. Blue Nights
Joan Didion, Knopf, $25, 9780307267672

23. Is Everyone Hanging Out Without Me? (And Other Concerns)
Mindy Kaling, Crown Archetype, $25, 9780307886262

24. Back to Work
Bill Clinton, Knopf, $23.95, 9780307959751

25. The New New Rules
Bill Maher, Blue Rider, $26.95, 9780399158414

26. Extra Virginity
Tom Mueller, Norton, $25.95, 9780393070217

27. Plenty
Yotam Ottolenghi, Chronicle, $35, 9781452101248

28. Seriously... I'm Kidding
Ellen DeGeneres, Grand Central, $26.99, 9780446585026

29. Rome: A Cultural, Visual, and Personal History
Robert Hughes, Knopf, $35, 9780307268440

30. The Eighty-Dollar Champion
Elizabeth Letts, Ballantine, $26, 9780345521088

31. One on One
John Feinstein, Little Brown, $27.99, 9780316079044

32. Pacific Crucible
Ian W. Toll, Norton, $35, 9780393068139

33. Being George Washington
Glenn Beck, Threshold Editions, $26, 9781451659269

34. That Used to Be Us
Thomas L. Friedman, Michael Mandelbaum, FSG, $28, 9780374288907

35. Pilgrimage
Annie Leibovitz, Random House, $50, 9780375505089

36. Jacqueline Kennedy
Caroline Kennedy, Michael Beschloss, Hyperion, $60, 9781401324254

37. And So It Goes
Charles J. Shields, Henry Holt, $30, 9780805086935

38. Inferno: The World at War, 1939-1945
Max Hastings, Knopf, $35, 9780307273598

39. Following Atticus
Tom Ryan, Morrow, $25.99, 9780061997105

40. Nearing Home
Billy Graham, Thomas Nelson, $19.99, 9780849948329

41. Sh*t My Dad Says
Justin Halpern, It Books, $15.99, 9780061992704

42. 1493
Charles C. Mann, Knopf, $30.50, 9780307265722

43. The Cook's Illustrated Cookbook
Cook's Illustrated, $40, 9781933615899

44. The 50 Funniest American Writers
Andy Borowitz (Ed.), Library of America, $27.95, 9781598531077

45. Midnight Rising
Tony Horwitz, Henry Holt, $29, 9780805091533

46. Here Comes Trouble
Michael Moore, Grand Central, $26.99, 9780446532242

47. Lions of the West
Robert Morgan, Shannon Ravenel, $29.95, 9781565126268

48. Spontaneous Happiness
Andrew Weil, Little Brown, $27.99, 9780316129442

49. Just My Type
Simon Garfield, Gotham, $27.50, 9781592406524

50. A World on Fire
Amanda Foreman, Random House, $35, 9780375504945