Fiction:
* The Adventures of Rupert Bear: He wrote and illustrated several books featuring the beloved bear.
* Children's Novels: He authored many popular children's novels like "The Adventures of the Little Wooden Horse," "The Adventures of the Wishing Chair," and "The Railway Children" (which was adapted from the novel by E. Nesbit).
* Science Fiction: He wrote science fiction novels like "The Yellow Claw" and "The Scarlet Pimpernel of the Spaceways."
* Historical Fiction: He also wrote historical novels like "The Sword of the Stranger," "The Scarlet Pimpernel," and "The Adventures of Robin Hood."
Non-Fiction:
* Biography: He wrote biographies of notable figures like "Lord Nelson," "The Life of William Wilberforce," and "King Charles II."
* History: He wrote books on historical subjects like "The Story of the British Empire" and "The Victorian Age."
* Art: He wrote about art and artists, including a book on "The History of Painting."
Plays and Screenplays:
* He also wrote for the stage and screen, with works like "The Adventures of Robin Hood" (a stage play) and "The Railway Children" (a screenplay).
His writing career was long and varied, covering numerous genres and subject matters. It's important to note that there were other writers named Ernest Pertwee, so it's crucial to specify "Ernest W. E. Pertwee" when referring to the author you're interested in.