 Swartz explores how this production influenced stage and film adaptations that followed, including the 1939 MGM movie.The book also discusses Baum's 1908 "Fairylogue and Radio-Plays", a presentation narrated by Baum, involving live action, slides and silent film, which included stories from Baum's original book and from its first two sequels, "The Marvelous Land of Oz" and "Ozma of Oz".Among other adaptations, the book also discusses the 1910, 1914 and 1925 silent film adaptations (the latter with Oliver Hardy as the Tin Woodman), some of which used material from other Oz books.