This index volume is a guide to the other volumes of Isaac Asimov's (New) Library of the Universe. The original series began in 1988 and had 32 books published between the first and the year 1990, then an "Index" volume, and an additional volume "The Future in Space" published after the index in 1993. {34 volumes in all}. The (New) series, updated and revised the series in 1996, all 34 volumes were updated including the "Index", but most volume titles were changed.