One day, Duncan is happily coloring with his crayons when a stack of postcards arrives in the mail from his former crayons, each of which has run away or been left behind, and all of which want to come home.
Toot and Puddle are best friends with very different interests, so when Toot spends the year travelling around the world, Puddle enjoys receiving his postcards.
Oliver K. Woodman, a man made of wood, takes a remarkable journey across America, as told through the letters and postcards of those he meets along the way.