The Costume Copycat By (author): "Anne Wilsdorf, Maryann Macdonald"Genres:Childrens books Picture Books Halloween books ISBN0803729294ISBN139780803729292AsinThe Costume CopycatOriginal titleThe Costume CopycatFull of warmth, humor, and wacky Halloween costumes, this story celebrates the inventiveness and originality that come from good-natured sibling rivalry. Full color.