Complex sentence: Faust also managed a massive outpouring of fiction, rivaling Edgar Wallace and especially, Isaac Asimov as one of the most prolific authors of all time, and he may have published more than 500 novels and short stories.
Split into simpler sentences: Faust also managed a massive outpouring of fiction, rivaling Edgar Wallace and especially, Isaac Asimov as one of the most prolific authors of all time. He may have published more than 500 novels and short stories.