Nine legendary authors present their ideas on why SF is important to readers and what it teaches them. These excerpts are from a series of interviews and lectures done from 1968-1978 by Prof. James Gunn at the University of Kansas. Full interviews are on the Literature of SF DVD available at http://www2.ku.edu/~sfcenter/. It's brought to you by AboutSF and the Center for the Study of Science Fiction at the University of Kansas. For more info, visit http://www.aboutsf.com.