Since Isaac Asimov's Science Fiction Magazine started in 1976, I have had the pleasure and honor of contributing to each issue a puzzle clothed in a science-fiction or fantasy story line. The first thirty-six of these vignettes were published in 1981 as Science Fiction Puzzle Tales. This book reprints the next thirty-seven. As in the previous collection, I have added to the final answers some additional comments about whatever I think will most interest readers. In many cases these remarks derive from pleasant correspondence with readers of Asimov's magazine.