Fred Lerner is a Vermont-based historian and bibliographer. His books include Modern Science Fiction and the American Literary Community and The Story of Libraries: From the Invention of Writing to the Computer Age. His first published story, "Rosetta Stone," has been described by anthologist David Hartwell as "the only SF story I know in which the science is library science."During his career at the National Center for Post-Traumatic Stress Disorder he produced an online index to more than 50,000 publications on PTSD. He claims to have seen more literature on the subject than anyone on the planet.