Based on sales for the week ending April 15, 2012

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

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

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

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

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

21. In the Garden of Beasts
Erik Larson, Crown, $26, 9780307408846

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

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

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

25. American Sniper
Chris Kyle, et al., Morrow, $26.99, 9780062082350

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

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

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

29. Trickle Down Tyranny
Michael Savage, Morrow, $26.99, 9780062083975

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

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

32. Why Nations Fail
Daron Acemoglu, James A. Robinson, Crown Business, $30, 9780307719218

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

34. The Age of Insight
Eric Kandel, Random House, $40, 9781400068715

35. House of Stone
Anthony Shadid, Houghton Mifflin Harcourt, $26, 9780547134666

36. The Righteous Mind
Jonathan Haidt, Pantheon, $28.95, 9780307377906

37. Religion for Atheists
Alain de Botton, Pantheon, $26.95, 9780307379108

38. Driving Mr. Yogi
Harvey Araton, Houghton Mifflin Harcourt, $26, 9780547746722

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

40. White House Burning
Simon Johnson, James Kwak, Pantheon, $26.95, 9780307906960

41. The End of Illness
David B. Agus, M.D., Free Press, $26, 9781451610178

42. Imperfect
Jim Abbott, Tim Brown, Ballantine, $26, 9780345523259

43. Weeknights With Giada
Giada de Laurentiis, Clarkson Potter, $35, 9780307451026

44. New American Haggadah
Jonathan Safran Foer (Ed.), Little Brown, $29.99, 9780316069861

45. That Woman
Anne Sebba, St. Martin's, $27.99, 9781250002969

46. Let It Go
T.D. Jakes, Atria, $25, 9781416547297

47. Dropped Names
Frank Langella, Harper, $25.99, 9780062094476

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

49. How to Cook Everything
Mark Bittman, Wiley, $35, 9780470528068

50. Paris in Love
Eloisa James, Random House, $26, 9781400069569