Complex sentence: John Wainwright (1921-1995), was a British crime novelist and author of 82 books, four of which have been published under the pen name Jack Ripley.
Split into simpler sentences: John Wainwright (1921 -), is a British novelist and author of more than 50 books, many of them in mystery, crime, or fantasy fiction genres. He has published under the pen name Jack Ripley.