Complex sentence: John Jude Palencar (Born 1957) is a fantasy/science-fiction cover artist with an impressive list of over 100 books whose covers have been adorned by his art, including "Eragon" by Christopher Paolini, the 2003 New York Times Bestseller.
Split into simpler sentences: John Jude Palencar (Born 1957) is a fantasy/science-fiction artist. Over 100 book covers have been adorned by his art, including "Eragon" by Christopher Paolini, the 2003 New York Times Bestseller.