Learning colours is fun in this entertaining book from the creators of the No.1 New York Times Bestsellers, The Day the Crayons Quit and The Day the Crayons Came Home. It's Duncan's birthday, and the crayons all want to make him a card! With their fun and quirky illustrations of fire engines, dragons, even wheat, the creative crayons each have something special to contribute. But when they come together, they can create a truly spectactular celebration! From the creative minds behind the The Day the Crayons Quit and The Day the Crayons Came Home comes a colourful board book introducing young readers to numbers.