The Royal Book of Oz

Lyman Frank Baum (1856 - 1919) 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 (55 novels in total, plus four "lost works", 83 short stories, over 200 poems, an unknown number of scripts and many miscellaneous writings). His works anticipated such century-later commonplaces as television, augmented reality, laptop computers (The Master Key), wireless telephones (Tik-Tok of Oz), women in high risk, action-heavy occupations (Mary Louise in the Country) and the ubiquity of advertising on clothing (Aunt Jane's Nieces at Work).

An avid reader of Baum's books and a lifelong children's writer, Thompson was born in Philadelphia, Pennsylvania and began her writing career in 1914 when she took a job with the Philadelphia Public Ledger; she wrote a weekly children's column for the newspaper. She had already published her first children's book, The Perhappsy Chaps, and her second, The Princess of Cozytown, was pending publication when William Lee, vice president of Baum's publisher Reilly & Lee, solicited Thompson to continue the Oz series. (Rumors among fans that Thompson was Baum's niece were untrue.) Between 1921 and 1939, she wrote one Oz book a year.