It is the story of a fox who dupes the king of the barnyard, and threatens the barnyard kingdom. The book also won the Kerlan award in 1992, and is included in the ALA's list of Notable Books of its time. The illustrations are quite reminiscent of their time. Hand drawn pictures such as these always leave me with a warm and fuzzy feeling.
In 1980, Barbara Cooney again won the Caldecott Medal. This time it was for 'Ox-Cart Man' by Donald Hall. This book was based on a poem he had written about a farming family who use an ox-cart to travel to market to sell their goods. He specifically chose her to illustrate his book.