How many shades of blue are there?There's the soft blue of a baby's cherished blanket, the ocean blue of a romp in the waves, the chilly blue of a cold winter's walk in the snow, and the true blue of the bond that exists between children and animals.In this simple, sumptuously illustrated companion to Caldecott Honor Book Green, award-winning artist Laura Vaccaro Seeger turns her attention to the ways in which color evokes emotion, and in doing so tells the story of one special and enduring friendship.