sentences:  After graduating from college, Ruddell began a career as a freelance illustrator.Some of Ruddell's clients include Bantam Books, Harcourt Brace Jovanovich, Avon Books, Ace Books, Ballantine Books and Baen Books.His artwork has been featured on the covers of books by such science fiction luminaries as Robert Lynn Asprin, Lois McMaster Bujold, C. J. Cherryh, and Connie Willis.