Silly Yaya is a book of grandparent names and the one-of-a-kind relationship between grandchildren and their grandparents. What do you call your grandparents? Or what do they call you?This children's picture book was written for children who do not call their grandparents the traditional grandma and grandpa. Instead, Silly Yaya tells the story of why "Each one (grandparent) needs their own special name. From family to family, they are not always the...