In the mid-1950s, legendary avant-garde composer John Cage and artist Lois Long created a truly marvelous object. Part artist's book, part cookbook, and part children's book, Mud Book is a spirited, if not satirical, take on almost every child's first attempt at cooking and making. Through the humble mud pie--add dirt and water!--Cage and Long encourage children to explore their imagination and to get their hands dirty, and they offer this...