<i>Celebrate its 50th anniversary with the reissue of this classic.</i><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. Leo Lionni launched his children's book career in 1959 with this “unusual, imaginative, stimulating, and appealing picture book”—<i>The Horn Book Magazine. </i>This 50th-anniversary edition includes Lionni's own explanation about how the book came to be during a train trip with his very young grandchildren. Virtually out of print for decades, it will join the other Lionni picture-book classics on the Alfred A. Knopf list.