Seventy-five years ago, a family of ducks waddled off the page and into the hearts of readers everywhere. The brilliantly illustrated tale of mallards on the move received the Caldecott Medal for the most distinguished picture book of the year, and has been a favorite of generations of readers. Celebrate the anniversary of with this special slipcased edition, which includes an audio CD as well as a landmark poster of the ducklings’ Boston by Caldecott Award-winner Paul Zelinsky.