Out of all the holidays, Emily Elizabeth and Clifford like Halloween the most. They play games, trick-or-treat in the neighborhood, and tell ghost stories. Best of all, they can wear costumes. Clown, witch, knight, or ghost—what will Clifford decide to dress up as this year?
— Lynda Blankenship from Smart Toys & Books in Knoxville, Tenn., told TDmonthly in a December 2011 survey about Halloween that, "any Halloween books with established characters, like Clifford or Fancy Nancy," tend to do well.