Based on sales for the week ending April 15, 2012

16. The Warmth of Other Suns
Isabel Wilkerson, Vintage, $16.95, 9780679763888

17. Outliers
Malcolm Gladwell, Back Bay, $16.99, 9780316017930

18. Lucky Peach Issue 3
David Chang (Ed.), McSweeney's, $12, 9781936365487

19. The Social Animal
David Brooks, Random House, $16, 9780812979374

20. The Hunger Pains
The Harvard Lampoon, Touchstone, $13.99, 9781451668209

21. At Home
Bill Bryson, Anchor, $15.95, 9780767919395

22. The Devil in the White City
Erik Larson, Vintage, $15.95, 9780375725609

23. The 5 Love Languages
Gary Chapman, Northfield, $14.99, 9780802473158

24. Zeitoun
Dave Eggers, Vintage, $15.95, 9780307387943

25. Steal Like an Artist
Austin Kleon, Workman, $10.95, 9780761169253

26. Cleopatra
Stacy Schiff, Back Bay, $16.99, 9780316001946

27. The Grand Design
Stephen Hawking, Leonard Mlodinow, Bantam, $18, 9780553384666

28. What to Expect When You're Expecting
Heidi Murkoff, Sharon Mazel, Workman, $14.95, 9780761148579

29. Titanic, First Accounts
Tim Maltin (Ed.), Penguin, $16, 9780143106623

30. To Marry an English Lord
Gail MacColl, Carol McD. Wallace, Workman, $15.95, 9780761171959

31. Wreck This Journal
Keri Smith, Perigee, $13.95, 9780399533464

32. The Glass Castle
Jeannette Walls, Scribner, $16, 9780743247542

33. This Is a Book
Demetri Martin, Grand Central, $14.99, 9780446539692

34. Rand McNally Road Atlas 2012
Rand McNally, $13.95, 9780528003363

35. Eat to Live
Joel Fuhrman, Little Brown, $15.99, 9780316120913

36. Unfamiliar Fishes
Sarah Vowell, Riverhead, $16, 9781594485640

37. The Four Agreements
Don Miguel Ruiz, Amber-Allen, $12.95, 9781878424310

38. Night
Elie Wiesel, FSG, $9.95, 9780374500016

39. The Man Who Quit Money
Mark Sundeen, Riverhead, $15, 9781594485695

40. Moby-Duck
Donovan Hohn, Penguin, $16, 9780143120506

41. The Emperor of All Maladies
Siddhartha Mukherjee, Scribner, $18, 9781439170915

42. Inside of a Dog
Alexandra Horowitz, Scribner, $16, 9781416583431

43. The Wilder Life
Wendy McClure, Riverhead, $16, 9781594485688

44. Life
Keith Richards, Back Bay, $16.99, 9780316034418

45. The Dressmaker of Khair Khana
Gayle Tzemach Lemmon, Harper Perennial, $14.99, 9780061732478

46. Until Tuesday
Luis Carlos Montalvan, Bret Witter, Hyperion, $14.99, 9781401310752

47. Kitty Cornered
Bob Tarte, Algonquin, $13.95, 9781565129993

48. The Information
James Gleick, Vintage, $15.95, 9781400096237

49. Blink
Malcolm Gladwell, Back Bay, $15.99, 9780316010665

50. Tiny Homes
Lloyd Kahn, Shelter, $26.95, 9780936070520