Based on sales for the week ending May 6, 2012

16. Mrs. Kennedy and Me
Clint Hill, Gallery, $26, 9781451648447

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

18. When Women Were Birds
Terry Tempest Williams, Angela Williams, FSG, $23, 9780374288976

19. Some Assembly Required
Anne Lamott, Riverhead, $26.95, 9781594488412

20. Steve Jobs
Walter Isaacson, S&S, $35, 9781451648539

21. Bringing Up Bébé
Pamela Druckerman, Penguin Press, $25.95, 9781594203336

22. The Social Conquest of Earth
Edward Osborne Wilson, Liveright, $27.95, 9780871404138

23. Private Empire
Steve Coll, Penguin Press, $36, 9781594203350

24. A Natural Woman
Carole King, Grand Central, $27.99, 9781455512614

25. Midnight in Peking
Paul French, Penguin, $26, 9780143121008

26. Escape from Camp 14
Blaine Harden, Viking, $26.95, 9780670023325

27. Darth Vader and Son
Jeffrey Brown, Chronicle, $14.95, 9781452106557

28. Goodnight iPad
Ann Droyd, Blue Rider, $14.95, 9780399158568

29. What Teachers Make
Taylor Mali, Putnam Adult, $19.95, 9780399158544

30. The Big Miss
Hank Haney, Crown Archetype, $26, 9780307985989

31. Behind the Beautiful Forevers
Katherine Boo, Random House, $27, 9781400067558

32. Killing Lincoln
Bill O'Reilly, Martin Dugard, Holt, $28, 9780805093070

33. Farther Away
Jonathan Franzen, FSG, $26, 9780374153571

34. Thinking, Fast and Slow
Daniel Kahneman, FSG, $30, 9780374275631

35. Restaurant Man
Joe Bastianich, Joseph Bastianich, Viking, $27.95, 9780670023523

36. It's Even Worse Than It Looks
Thomas Mann, Norman Ornstein, Basic Books, $26, 9780465031337

37. Mother's Love
Melina Gerosa Bellows, National Geographic, $9.95, 9781426209222

38. Drop Dead Healthy
A.J. Jacobs, S&S, $26, 9781416599074

39. We Can All Do Better
Bill Bradley, Vanguard Press, $24.99, 9781593157296

40. What Money Can't Buy
Michael J. Sandel, FSG, $27, 9780374203030

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

42. Subliminal
Leonard Mlodinow, Pantheon, $25.95, 9780307378217

43. The Pioneer Woman Cooks
Ree Drummond, Morrow, $29.99, 9780061997181

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

45. Do Not Ask What Good We Do
Robert Draper, Free Press, $28, 9781451642087

46. Why Be Happy When You Could Be Normal?
Jeanette Winterson, Grove Press, $25, 9780802120106

47. When I Was a Child I Read Books
Marilynne Robinson, FSG, $24, 9780374298784

48. Over Time
Frank Deford, Atlantic Monthly Press, $25, 9780802120151

49. Revelations
Elaine Pagels, Viking, $27.95, 9780670023349

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