Extended Hardcover Fiction Based on sales from the week ending April 1, 2007. 16. The Book of Air and Shadows Michael Gruber, Morrow, $24.95, 9780060874469 17. Shopaholic and Baby Sophie Kinsella, Dial, $24, 9780385338707 18. The Post-Birthday World Lionel Shriver, HarperCollins, $25.95, 9780061187841 19. Heyday Kurt Andersen, Random House, $26.95, 9780375504730 20. The God of Animals Aryn Kyle, Scribner, $25, 9781416533245 21. Then We Came to the End Joshua Ferris, Little Brown, $23.99, 9780316016384 22. The Alibi Man Tami Hoag, Bantam, $26, 9780553802016 23. You Suck Christopher Moore, Morrow, $21.95, 9780060590291 24. The Naming of the Dead Ian Rankin, Little Brown, $24.99, 9780316057578 25. Ten Days in the Hills Jane Smiley, Knopf, $26, 9781400040612 26. Daddy's Girl Lisa Scottoline, HarperCollins, $25.95, 9780060833145 27. You Don't Love Me Yet Jonathan Lethem, Doubleday, $24.95, 9780385512183 28. What the Dead Know Laura Lippman, Morrow, $24.95, 9780061128851 29. The Boleyn Inheritance Philippa Gregory, Touchstone, $25.95, 9780743272506 30. Hunter's Moon Randy Wayne White, Putnam, $24.95, 9780399153709 31. The Alexandria Link Steve Berry, Ballantine, $25.95, 9780345485755 32. Innocent Traitor Alison Weir, Ballantine, $24.95, 9780345494856 33. For a Few Demons More Kim Harrison, Eos, $21.95, 9780060788384 34. Call Me by Your Name Andre Aciman, FSG, $23, 9780374299217 35. My French Whore Gene Wilder, St. Martin's, $18.95, 9780312360573 36. Returning to Earth Jim Harrison, Grove, $24, 9780802118387 37. Roma Steven W. Saylor, St. Martin's, $25.95, 9780312328313 38. High Profile Robert B. Parker, Putnam, $24.95, 9780399154041 39. Finn Jon Clinch, Random House, $23.95, 9781400065912 40. The Spellman Files Lisa Lutz, S&S, $25, 9781416532392 41. Exile Richard North Patterson, Holt, $26, 9780805079470 42. A Far Country Daniel Mason, Knopf, $24, 9780375414664 43. Sisters Danielle Steel, Delacorte, $27, 9780385340229 44. The Echo Maker Richard Powers, FSG, $25, 9780374146351 45. When the Light Goes Larry McMurtry, S&S, $24, 9781416534266 46. The Knitting Circle Ann Hood, Norton, $24.95, 9780393059014 47. Murder on the Ile Saint-Louis Cara Black, Soho Crime, $23, 9781569474440 48. The Beautiful Things That Heaven Bears Dinaw Mengestu, Riverhead, $22.95, 9781594489402 49. Grotesque Natsuo Kirino, Knopf, $24.95, 9781400044948 50. Thirst Mary Oliver, Beacon, $22, 9780807068960 The Book Sense Bestseller List is copyrighted and cannot be reprinted without permission from the American Booksellers Association. For information on obtaining permission, contact Meg Smith, Associate Director, Book Sense Marketing, ABA, 828 South Broadway, Tarrytown, NY 10591, call (914) 591-2665, ext. 1239. Reprint Guidelines.