This image is the cover for the book The Emerald City of Oz, Classics To Go

The Emerald City of Oz, Classics To Go

Dorothy, the primary protagonist of many of the previous Oz books, speaks freely of her adventures to her only living relatives, her  Aunt Em and Uncle Henry. Neither of them believes a word of her stories, but consider her a dreamer. Later, it is revealed that the destruction of their farmhouse by the tornado back in "The Wonderful Wizard Of Oz" has left Uncle Henry in terrible debt. In order to pay it, he has taken out a mortage on his farm. If he cannot repay his creditors, they will seize the farm. He is not afraid for himself, but both he and his wife, Aunt Em, fear very much for their niece's future. Dorothy arranges with Princess Ozma to take them to the Land of Oz, where they will be safe. Using the magic belt (a tool captured from the jealous Nome King Roquat), Ozma transports them to her throne room. They are given rooms to live in and luxuries to enjoy, including a vast and complex wardrobe. They meet with many of Dorothy's animal friends, including the Cowardly Lion and Billina, the Yellow Hen… (Excerpt taken from Wikipedia)

L. Frank Baum

Lyman Frank Baum (May 15, 1856 – May 6, 1919) was an American author chiefly famous for his children's books, particularly The Wonderful Wizard of Oz and its sequels. He wrote 14 novels in the Oz series, plus 41 other novels, 83 short stories, over 200 poems, and at least 42 scripts. He made numerous attempts to bring his works to the stage and the nascent medium of film; the 1939 adaptation of the first Oz book would become a landmark of 20th-century cinema. 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 and action-heavy occupations (Mary Louise in the Country), and the ubiquity of advertising on clothing (Aunt Jane's Nieces at Work). (Wikipedia)