'The Wizzard of Oz' has spawned 39 official sequals, over 100 unnoffical sequels, nearly 40 films, TV series, music videos, commericials, computer games, and radio shows. This book includes synopses and bibliographical information for the forty Oz books in the original series and a number of related books; synopses and credits for live performances; comic book adaptations; synopses and credits for theatrical films and shorts; documentaries and educational films; synopses and credits for television series and episodes; video and computer games; and useful websites.