Sandburg, Carl, 1878-1967. Rand, Ted, ill. San Diego :Harcourt Brace Jovanovich, c1993. eng A poem about numbers and their characteristics. Features anamorphic, or distorted, drawings which can be restored to normal by viewing from a particular angle or by viewing the image's reflection in the provided Mylar cone. One Mylar sheet included in pocket. Arithmetic Children's poetry, American. Arithmetic American poetry. Visual perception.