<P> The Oz books form a book series that begins with The Wonderful Wizard of Oz ( 1900 ) and relate the fictional history of the Land of Oz . Oz was created by author L. Frank Baum , who went on to write fourteen full - length Oz books . All of the Baum written books are in the public domain in the United States . Even while he was alive , Baum was styled as `` the Royal Historian of Oz '' to emphasize the concept that Oz is an actual place . The illusion created was that characters such as Dorothy and Princess Ozma related their adventures in Oz to Baum themselves , by means of wireless telegraph . </P>
<P> The Oz books form a book series that begins with The Wonderful Wizard of Oz ( 1900 ) and relate the fictional history of the Land of Oz . Oz was created by author L. Frank Baum , who went on to write fourteen full - length Oz books . All of the Baum written books are in the public domain in the United States . Even while he was alive , Baum was styled as `` the Royal Historian of Oz '' to emphasize the concept that Oz is an actual place . The illusion created was that characters such as Dorothy and Princess Ozma related their adventures in Oz to Baum themselves , by means of wireless telegraph . </P>
how many books in the wizard of oz
how many books in the wizard of oz
fourteen
fourteen