Margie is 11 and Tommy is 13 years old. Margie wrote in her diary about Tommy finding a new book, which was a strange object to her. She had never seen a physical book before, as books in the future had moving images on screens. The book Tommy found had static yellow pages with words that did not move. It discusses that a book displayed on a screen is called a telebook. Margie's school was in her home and she had no classmates, and she learned geography, history, and arithmetic.