'The Snowman'. First published in 1978 it's a picture book without words, that was made into an animated film in 1982.
The story is about a young English boy who makes a snowman one Christmas Eve. The snowman comes alive at midnight and the two share a delightful adventure before the snowman takes the boy on a magical trip to the North Pole to meet Santa Claus.
If you have a spare 25 minutes it's worth watching The Snowman on You Tube for the animation, and also a beautiful video to watch with children - it so reminds me of my childhood as this was played every Christmas. Just seeing the snow and the excitment of the little boy takes me back to snowy winters in England a very long time ago!