Rating: 
Summary: Old School Sci-fi for intellectuals
Review: This was a fantastic book, one of the best on the subject of time travel and it took an ultra realistic viewpoint that really connets to the reader. It also incorporated several philosphical aspects of life, love, and happiness and how these things can be manipulated for better or worse.It's good to read books like these and recall the days when SF was intelligent and good instead of the watered down not even good cyberpunk that it is today. I give this book 5 stars because it is highly reccomended for fans of the real SF genre. Plus I would also say that in terms of plot quality surrounding time travel this one would be on par with Heinlein's "By his Bootstraps." A Must READ!
Rating: 
Summary: Rings all the changes . . .
Review: When this time-travel classic first appeared thirty years ago, I was a grad student in history and my mind was full of the academic debate over the nature of causality -- so Gerrold's thoughts on the subject made quite an impression on me. I stole his arguments shamelessly for use in the TA lounge. I had met him at a con a couple of years before, when his reputation derived almost entirely from tribbles, and I believed at the time that he was going places. Sadly, he never quite made the big time and I imagine most younger discoverers of science fiction have never heard of him. Still, any fan of time travel fiction knows this book well and I doubt anyone can ever match the psychological and philosophical complexity of Dan Eakin's life in possession of the Timebelt. This artifact is the only one of its kind (logically, when you think about it) and so Dan is the only time traveler, . . . but there's plenty of him to go around, because time travel is actually the creation of alternate realities. There are young Dans and old ones, hetero- and homosexual versions, even male and female. Some go insane, some become degenerate. Some find love, some lose it. But Dan is his own universe: "I am a circle, complete unto itself. I have brought life into this world, and that life is me." If you're looking for a Time Patrol adventure yarn, this isn't it. (There isn't even all that much plot in the usual sense.) But if you want to think about the consequences of personal, individual time travel, you can't do any better than this one.
Rating: 
Summary: Highly overrated
Review: While I can't say that I didn't like this book at all, I can say that it was hardly a work of literary genius. The writing style is a bit prosaic, and the dearth of true character interaction quickly becomes obnoxious. But the most frustrating thing about it is that it could have been so much more. The author raises would-be fascinating scenarios regarding paradoxes and the effects of removing key historical figures from existence, but never gives any of these topics more than a perfunctory once-over. The beginning of the book misleads the reader into believing that a detailed examination of the nuances and dangers of time travel will follow, but disappoints them when these issues are never fully explored - or explained for that matter. I did like the fact that the author presented a couple of possibilities that I had never considered, which made for good conversation topics. However this is less a story about time travel than one of trite self-examination and sexual exploration.
Rating:
Summary: best time travel book ever
Review: why is this out-of-print? can't we do something about this. how can such brilliance be out of print?
Rating:
Summary: Probably the best book on time paradox ever written.
Review: Without giving the book away not much can be said other than don't read this if you are a small minded individual. If you're not sure if you are then don't read. Does not follow the matter cannot touch itself physics as seen in the movie 'Timecop'. What is time? Who am I? And other questions are explored. I loaned mine to someone and he has since loaned it to thirty plus others.
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