Based on sales for the week ending February 5, 2012

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

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

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

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

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

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

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

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

24. Greedy Bastards
Dylan Ratigan, S&S, $25, 9781451642223

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

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

27. Deliciously G-Free
Elisabeth Hasselbeck, Ballantine, $30, 9780345529381

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

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

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

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

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

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

34. Then Again
Diane Keaton, Random House, $26, 9781400068784

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

36. All There Is
Dave Isay, Penguin Press, $24.95, 9781594203213

37. God's Jury
Cullen Murphy, Houghton Mifflin Harcourt, $27, 9780618091560

38. Distrust That Particular Flavor
William Gibson, Putnam, $26.95, 9780399158438

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

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

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

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

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

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

45. 30 Lessons for Living
Karl A. Pillemer, Hudson Street Press, $25.95, 9781594630842

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

47. Thinking the Twentieth Century
Tony Judt, Timothy Snyder, Penguin Press, $36, 9781594203237

48. All In: The Education of General David Petraeus
Paula Broadwell, Penguin Press, $29.95, 9781594203183

49. One Thousand Gifts
Ann Voskamp, Zondervan, $16.99, 9780310321910

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