Lyman Frank Baum (May 15, 1856 – May 6, 1919), better known by his pen name L. Frank Baum, was an American author chiefly known for his children’s books, particularly The Wonderful Wizard of Oz. He wrote thirteen novel sequels, nine other fantasy novels, and a host of other works. He wrote 55 novels in total, plus four “lost” novels, 83 short stories, over 200 poems, an unknown number of scripts and many miscellaneous writings.

In 1900, Baum and illustrator William Wallace Denslow (with whom he shared the copyright) published The Wonderful Wizard of Oz to much critical acclaim and financial success. The book was the best-selling children’s book for two years after its initial publication. Baum went on to write thirteen more novels based on the places and people of the Land of Oz.