In 1963 The Snowy Day won the Caldecott and broke the color barrier in mainstream children’s book publishing by being embraced across social and ethnic boundaries. Beloved by generation after generation, The Snowy Day, with its vivid, contemporary illustrations and text, has become one of the most iconic children’s books of the last century. Peter and his snowsuit are classic sign that winter has come! Hardcover. By Ezra Jack Keats.