Based on sales for the week ending April 1, 2012

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

17. The Blood Sugar Solution
Mark Hyman, M.D., Little Brown, $27.99, 9780316127370

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

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

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

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

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

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

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

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

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

27. Wishes Fulfilled
Wayne W. Dyer, Hay House, $24.95, 9781401937270

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

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

30. The Science of Yoga
William J. Broad, Bobby Clennell (Illus.), S&S, $26, 9781451641424

31. Full Service
Scotty Bowers, Grove Press, $25, 9780802120076

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

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

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

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

36. The Idea Factory
Jon Gertner, Penguin Press, $29.95, 9781594203282

37. Soldier Dogs
Maria Goodavage, Dutton, $26.95, 9780525952787

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

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

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

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

42. The Enlightened Cyclist
Bike Snob NYC, Chronicle, $16.95, 9781452105000

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

44. American Triumvirate
James Dodson, Knopf, $28.95, 9780307272492

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

46. Unorthodox
Deborah Feldman, S&S, $23, 9781439187005

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

48. Below Stairs
Margaret Powell, St. Martin's, $22.99, 9781250005441

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

50. The Lean
Kathy Freston, Weinstein Books, $25, 9781602861732