Based on sales for the week ending July 31, 2011

16. Blood, Bones & Butter
Gabrielle Hamilton, Random House, $26, 9781400068722

17. The Dukan Diet
Pierre Dukan, Crown Archetype, $26, 9780307887962

18. Lies That Chelsea Handler Told Me
Chelsea Handler, et al., Grand Central, $24.99, 9780446584715

19. Haiti After the Earthquake
Paul Farmer, PublicAffairs, $27.99, 9781586489731

20. Sex on the Moon
Ben Mezrich, Doubleday, $26.95, 9780385533928

21. The Psychopath Test
Jon Ronson, Riverhead, $25.95, 9781594488016

22. The Idea of America
Gordon S. Wood, Penguin Press, $29.95, 9781594202902

23. The 17 Day Diet
Dr.Mike Moreno, Free Press, $25, 9781451648652

24. Cleopatra
Stacy Schiff, Little Brown, $29.99, 9780316001922

25. The Tao of Travel
Paul Theroux, Houghton Mifflin Harcourt, $25, 9780547336916

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

27. The 4-Hour Body
Timothy Ferriss, Crown , $27, 9780307463630

28. Sh*t My Dad Says
Justin Halpern, It Books, $15.99, 9780061992704

29. The Warmth of Other Suns
Isabel Wilkerson, Random House, $30, 9780679444329

30. An Anatomy of Addiction
Howard Markel, Pantheon, $28.95, 9780375423307

31. The Storm of War
Andrew Roberts, Harper, $29.99, 9780061228599

32. The Triple Agent
Joby Warrick, Doubleday, $26.95, 9780385534185

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

34. The Ledge
Jim Davidson, Kevin Vaughan, Ballantine, $26, 9780345523198

35. There Are Things I Want You to Know about Stieg Larsson and Me
Eva Gabrielsson, Seven Stories, $23.95, 9781609803636

36. Does the Noise in My Head Bother You?
Steven Tyler, Ecco, $27.99, 9780061767890

37. Of Thee I Zing
Laura Ingraham, Threshold, $25, 9781451642049

38. Moonwalking With Einstein
Joshua Foer, Penguin Press, $26.95, 9781594202292

39. Fire Monks
Colleen Morton Busch, Penguin Press, $25.95, 9781594202919

40. The Heart and the Fist
Eric Greitens, Houghton Mifflin Harcourt, $27, 9780547424859

41. Dog Sense
John Bradshaw, Basic Books, $25.99, 9780465019441

42. Those Guys Have All the Fun
James Andrew Miller, Tom Shales, Little Brown, $27.99, 9780316043007

43. To End All Wars
Adam Hochschild, Houghton Mifflin Harcourt, $28, 9780618758289

44. Finding Everett Ruess
David Roberts, Broadway Books, $25, 9780307591760

45. A Band of Misfits
Andrew Baggarly, Triumph, $19.95, 9781600785986

46. The Emperor of All Maladies
Siddhartha Mukherjee, Scribner, $30, 9781439107959

47. Barefoot Contessa How Easy Is That?
Ina Garten, Clarkson Potter, $35, 9780307238764

48. ZooBorns
Andrew Bleiman, Chris Eastland, S&S, $9.99, 9781439195314

49. This Is a Book
Demetri Martin, Grand Central, $24.99, 9780446539708

50. At Home
Bill Bryson, Doubleday, $28.95, 9780767919388