Complex sentence: Chris is the author of the children's book Meg and the Flying Horse, and has written various short stories for "American Heritage Magazine" and theater reviews for the webzine yournewsrightnow.com.
Split into simpler sentences: Chris is the author of the children's book Meg and the Flying Horse. He has also written various short stories for "American Heritage Magazine" and theater reviews for the webzine yournewsrightnow.com.