Book excerpt: 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 warning: "Mud pies are to make and look at, not to eat." A unique hybrid of art book, unconventional cookbook, and inspiration for young makers, this new edition of Mud Book will delight children and parents alike, and makes a charming gift for all ages.