Lyman Frank Baum (1856-1919) was best known for his children's books, particularly The Wonderful Wizard of Oz and its sequels, numbering fourteen books in total. He also wrote many novels, short stories and poems. The 1939 adaptation of Baum's first Oz book has become one of the best loved films in cinema history. L. Frank Baum was born in Chittenango, New York, and died in Hollywood, California. Júlia Sardà is the acclaimed illustrator of Mary Who Wrote Frankenstein, One Day in Wonderland: A Celebration of Lewis Carroll's Alice, Sweep and The Liszts, as well as the creator of covers for many bestselling novels including The Clockwork Sparrow and Beetle Boy. She lives in Barcelona.

Lyman Frank Baum (1856-1919) was best known for his children's books, particularly The Wonderful Wizard of Oz and its sequels, numbering fourteen books in total. He also wrote many novels, short stories and poems. The 1939 adaptation of Baum's first Oz book has become one of the best loved films in cinema history. L. Frank Baum was born in Chittenango, New York, USA, and died in Hollywood, California, USA.