Based on sales for the week ending December 23, 2012

16. Catherine the Great
Robert K. Massie, Random House, $20, 9780345408778

17. Tiny Beautiful Things
Cheryl Strayed, Vintage, $14.95, 9780307949332

18. Rin Tin Tin: The Life and the Legend
Susan Orlean, S&S, $16, 9781439190142

19. Jack Kennedy: Elusive Hero
Chris Matthews, S&S, $16.99, 9781451635096

20. The Immortal Life of Henrietta Lacks
Rebecca Skloot, Broadway, $16, 9781400052189

21. Arguably
Christopher Hitchens, Twelve, $18, 9781455502783

22. The Greater Journey
David McCullough, S&S, $20, 9781416571773

23. To Heaven and Back
Mary C. Neal, Waterbrook, $14.99, 9780307731715

24. Heaven Is for Real
Todd Burpo, Thomas Nelson, $16.99, 9780849946158

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

26. Born to Run
Christopher McDougall, Vintage, $15.95, 9780307279187

27. The Best American Sports Writing 2012
Michael Wilbon, Glenn Stout (Eds.), Mariner, $14.95, 9780547336978

28. Lady Almina and the Real Downton Abbey
The Countess of Carnarvon, Broadway, $15.99, 9780770435622

29. Turn Right at Machu Picchu
Mark Adams, Plume, $16, 9780452297982

30. 1493
Charles C. Mann, Vintage, $16.95, 9780307278241

31. How to Be a Woman
Caitlin Moran, Harper Perennial, $15.99, 9780062124296

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

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

34. Empire of the Summer Moon
S.C. Gwynne, Scribner, $16, 9781416591061

35. The Happiness Project
Gretchen Rubin, Harper, $14.99, 9780061583261

36. The Chew: Food. Life. Fun.
Mario Batali, et al., Hyperion, $19.99, 9781401311063

37. The Best American Science and Nature Writing 2012
Dan Ariely, Tim Folger (Eds.), Mariner, $14.95, 9780547799537

38. Destiny of the Republic
Candice Millard, Anchor, $16, 9780767929714

39. Boomerang
Michael Lewis, Norton, $16.95, 9780393343441

40. Just Kids
Patti Smith, Ecco, $16, 9780060936228

41. Portlandia: A Guide for Visitors
Fred Armisen, et al., Grand Central, $16.99, 9781455520589

42. Following Atticus
Tom Ryan, Morrow, $15.99, 9780061997112

43. The River of Doubt
Candice Millard, Broadway, $16, 9780767913737

44. The Best American Essays 2012
David Brooks, Robert Atwan (Eds.), Mariner, $14.95, 9780547840093

45. Seriously... I'm Kidding
Ellen DeGeneres, Grand Central, $14.99, 9780446585040

46. Zagat 2013 New York City Restaurants
, Zagat, $15.95, 9781604785180

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

48. The Zombie Survival Guide
Max Brooks, Three Rivers, $14.99, 9781400049622

49. Quite Enough of Calvin Trillin: Forty Years of Funny Stuff
Calvin Trillin, Random House, $17, 9780812982213

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