"The first edition of Paul Nahin's book was the most thorough compendium ever written on time travel... This second edition of Nahin's book has been revised accordingly. It now is not only the most complete documentation of time travel in science fiction, it is also the most thorough review of serious scientific literature on the subject - a review that, ... Read moreremarkably, is scientifically accurate and at the same time largely accessible to a broad audience of non-specialists. In browsing this revised edition, I have been struck by the richness and complexity of the tapestry of ideas that Nahin presents... Nahin's book may well remain the most readable and complete treatise on time travel in science and science fiction." - KIP S. THORNE, CALTECH" Show Less