Based on sales for the week ending February 12, 2012

16. Ameritopia
Mark R. Levin, Threshold Editions, $26.99, 9781439173244

17. Go the F**k to Sleep
Adam Mansbach, Ricardo Cortes (Illus.), Akashic, $14.95, 9781617750250

18. Catherine the Great
Robert K. Massie, Random House, $35, 9780679456728

19. Strategic Vision
Zbigniew Brzezinski, Basic Books, $26, 9780465029549

20. Ali in Wonderland
Ali Wentworth, Harper, $25.99, 9780061998577

21. Hilarity Ensues
Tucker Max, Blue Heeler, $25.99, 9781451669039

22. The Swerve
Stephen J. Greenblatt, Norton, $26.95, 9780393064476

23. Boomerang
Michael Lewis, Norton, $25.95, 9780393081817

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

25. Coming Apart
Charles Murray, Crown Forum, $27, 9780307453426

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

27. Fairy Tale Interrupted
Rosemarie Terenzio, Gallery, $25, 9781439187678

28. Rin Tin Tin
Susan Orlean, S&S, $26.99, 9781439190135

29. Through My Eyes
Tim Tebow, Harper, $26.99, 9780062007285

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

31. A History of the World in 100 Objects
Neil MacGregor, Viking, $45, 9780670022700

32. Guitar Zero
Gary Marcus, Penguin Press, $25.95, 9781594203176

33. Take the Stairs
Rory Vaden, Perigee, $22.95, 9780399537233

34. Jack Kennedy
Chris Matthews, S&S, $27.50, 9781451635089

35. The Obamas
Jodi Kantor, Little Brown, $29.99, 9780316098755

36. Jesus Calling
Sarah Young, Integrity, $15.99, 9781591451884

37. The World of Downton Abbey
Jessica Fellowes, St. Martin's, $29.99, 9781250006349

38. Me Without You
Lisa Swerling, Ralph Lazar, Chronicle, $9.95, 9781452102986

39. The Journal of Best Practices
David Finch, Scribner, $25, 9781439189719

40. Pity the Billionaire
Thomas Frank, Metropolitan, $25, 9780805093698

41. Into the Silence
Wade Davis, Knopf, $32.50, 9780375408892

42. How to Be Black
Baratunde Thurston, Harper, $24.99, 9780062003218

43. New York Diaries: 1609 to 2009
Teresa Carpenter (Ed.), Modern Library, $26, 9780679643326

44. Thinking the Twentieth Century
Tony Judt, Penguin Press, $36, 9781594203237

45. Woolgathering
Patti Smith, New Directions, $18.95, 9780811219440

46. Da Vinci's Ghost
Toby Lester, Free Press, $26.99, 9781439189238

47. Wheat Belly
William Davis, Rodale, $25.99, 9781609611545

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

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

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