Jim LaMarche is another illustrator featured in the Fairy Tale Art: Illustrations from Children's Books exhibit. You can read more about him at Jim LaMarche and at Harper Collins.
Each of the illustrations had a gloss from LaMarche about the work. What I remember the most--I couldn't take many notes--is his story about the little girl who modeled for the elf. One day when he arrived to work with her, she would only whistle at him since she had just learned how so in the illustrations she is whistling. Quite whimsical.
Now here's the illustrations:
Other books by LaMarche: