Leo Lionni's first picture book has at last found its perfect format in this sturdy board book for the very youngest child. <br><br>Little Blue and Little Yellow are best friends, but one day they can't find each other. When they finally do, they give each other such a big hug that they turn green! How they find their true colors again concludes a wonderfully satisfying story told with colorful pieces of torn paper and very few words. This classic tale of friendship also offers a playful introduction to color concepts.