Every year, the Caldecott Medal is awarded by the Association for Library Services to Children, a division of the American Library Association. The committee reviews children's books published throughout the year and selects one book whose art exemplifies the best of American illustration. To be named winner of the Caldecott Medal is a massive achievement and often comes as a sign that the book is destined to be loved by generations of children. These distinguished books are sought after by both children and collectors, and they occupy well-loved places on numerous shelves. Continuing our ongoing Caldecott Medal Winning Illustrators Series, let's take a closer look at 1948 Winner, Roger Duvoisin.