This product is a vintage lot of two hardcover books by L. Frank Baum, including "The Lost Princess of Oz" and "The Patchwork Girl of Oz." These illustrated books are in English and were published in North America. They are part of the character family of "The Wizard of Oz" and fall under the subject of children's books. These original editions are a valuable addition to any collector's library, especially for fans of classic children's literature.