LARRY NIVEN is the multiple Hugo and Nebula Award-winning author of the Ringworld series, along with many other science fiction masterpieces. He lives in Chatsworth, California. JERRY POURNELLE is an essayist, journalist, and science fiction author. He has advanced degrees in psychology, statistics, engineering, and political science. Together Niven and Pournelle are the authors of many New York Times bestsellers including Inferno, The Mote in God's Eye, Footfall, and Lucifer's Hammer.