Based on sales for the week ending July 8, 2012

16. The Price of Inequality
Joseph E. Stiglitz, Norton, $27.95, 9780393088694

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

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

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

20. Barack Obama: The Story
David Maraniss, S&S, $32.50, 9781439160404

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

22. It Worked For Me
Colin Powell, Harper, $27.99, 9780062135124

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

24. Cronkite
Douglas Brinkley, Harper, $34.99, 9780061374265

25. Monkey Mind
Daniel B. Smith, S&S, $25, 9781439177303

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

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

28. This Is How
Augusten Burroughs, St. Martin's, $24.99, 9780312563554

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

30. The Tools
Phil Stutz, Barry Michels, Spiegel & Grau, $25, 9780679644446

31. American Grown
Michelle Obama, Crown, $30, 9780307956026

32. Leadocracy
Geoff Smart, Greenleaf, $19.95, 9781608322886

33. As Texas Goes...
Gail Collins, Liveright, $25.95, 9780871404077

34. Eat and Run
Scott Jurek, Steve Friedman, Houghton Mifflin Harcourt, $26, 9780547569659

35. Prague Winter
Madeleine Albright, Harper, $29.99, 9780062030313

36. End This Depression Now!
Paul Krugman, Norton, $24.95, 9780393088779

37. Days of Destruction, Days of Revolt
Chris Hedges, Joe Sacco (Illus.), Nation Books, $28, 9781568586434

38. Wherever I Wind Up
R.A. Dickey, Blue Rider Press, $26.95, 9780399158155

39. I Hate Everyone... Starting with Me
Joan Rivers, Berkley, $25.95, 9780425248300

40. An American Son
Marco Rubio, Sentinel, $26.95, 9781595230942

41. The Receptionist
Janet Groth, Algonquin, $19.95, 9781616201319

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

43. I Am a Pole (and So Can You!)
Stephen Colbert, Paul Hildebrandt (Illus.), Grand Central, $15.99, 9781455523429

44. Twilight of the Elites
Christopher Hayes, Crown, $26, 9780307720450

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

46. The Art of Fermentation
Sandor Ellix Katz, Chelsea Green, $39.95, 9781603582865

47. Over Time
Frank Deford, Atlantic Monthly, $25, 9780802120151

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

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

50. The Art of Intelligence
Henry A. Crumpton, Penguin Press, $27.95, 9781594203343