Rating: 
Summary: What An Adventure!
Review: Wow, this book was amazing. It is a high adrenaline paced adventure that will have you stuck in your seat until the very end. I loved the non stop sword play and suspense. Not only does Crichton give you afuturistic, technology based look into the future,(as always) but he also takesa look into the past giving the you a rollercoaster of action. I loved the cast of characters and how you saw each one changethroughout the book. The only disapointment tothis novel was the constant build ups of suspenseand then the disapointment to find out that thenext page was a dull check-up to see how thepeople in the present time were doing. For me,this effect took out a lot of the suspense andaction in the many dramatic fight scenes locatedin almost every other chapter in the book. However,this book still has plenty of facts, fun, andaction topped off with what I thought was a decentending.
Rating: 
Summary: What's up with that?
Review: Well, this one was worth a discount rack paperback edition, as far as I'm concerned. Unfortunately, I bought the hardcover. Anyway, my main problem with the book is that these characters aren't worth it for you to care about what happens to them in the 14th century. What Crichton does do best in this book, however, is what he's always done best: he is able to describe complicated scientific hypotheses in very clear and very interesting language. The parts of the book that describe how time travel works in a quantum universe were the most interesting. My advice, though, a re-read of Sphere (one of my favorites) would make for a better book.
Rating:
Summary: A movie!
Review: As a huge Michael Crichton fan this is the first book that was a disappointment. The beginning was good. The technical information and research was interesting as always in Crichtons books. The middle held my attention until the ongoing similar type of fighting and chasing got to be tedious. Enough was enough. By the time I got to the end I struggled not to skip ahead. The biggest disapppointment was that this book was definitely written to be a movie. I noticed this from very close to the beginning. I kept seeing the Indiana Jones movie in my head as I read this book. As a faithful reader I look forward to Crichtons next book but would like to see him get back in touch with his readers. In the future, rather than writing a script for a movie I will hope he writes an authentic novel as were his novels in the past.
Rating:
Summary: Who in history was not mentioned?
Review: Previous critical reviews have already captured my negative sentiments towards this popular author and seem to follow very similar lines; written for the screen, too many close calls, logical errors, shallow characters, trite and incomplete treatment of science, unresolved paradoxes, etc. But one major flaw that I feel has not been addressed is Mr. Crichton's choice of historical period. If you ask people what person in history they would most like to meet if possible, you will find, I'm sure, that Jesus would have to be at the top of the list. Maybe this would be too controversial a person/period to have chosen but it would make the most logical sense from the entrepreneurial aspect of ITC - at least to have received mention (i. e. vs. A. Lincoln) as a possibility to show investors. Another period that was ignored was that of the future, again from the perspective of what people would desire to know about and be most willing to pay for. I am always disappointed in romantic arts that are so blatantly created for market. I don't censure Crichton Inc., but greed has quelled more than a few creative fires.
Rating: 
Summary: Simply one of the best!
Review: I see alot of people have been slamming this book, I don't know why though. It's very entertaining and does what a book should do. For me that purpose would be to entertain me and make me feel like I was living the story along with the characters in the book. The book did both of these things and more! Great adventure! Superb characters! An excellent story line! I could go on but what's the point? Read it yourself! If you're like me and you just want to read a wicked adventure story you would not go wrong in choosing this book to read. NUFF SAID!
Rating:
Summary: Intriguing
Review: I really enjoyed TIMELINE. I was leery buying it because it sounded toooo far fetched. But he did a great job as usual. The quantam theory is rather exciting to consider. I look forward to his next book.
Rating:
Summary: Timeline
Review: I have read all Michael Crichton's works and find him a very diverse author, as this book demonstrates. The historical perspective brings the book alive. It was difficult wading through the "quantum" theories at the beginning of the book, but smooth sailing past that. A really enjoyable read and I'll bet the movie will be a block buster.
Rating:
Summary: Prepared for the movie screen
Review: When I first saw this book I was excited to see a Crichton book incorporating another highly scientific concept (quantum theory) into an adventure story. As I read I was disappointed in the glib nature of the action in the book. It seemed that every section was trying to have a cliff-hanger ending. Like I was watching a made for TV movie right before a commercial. Also, the actions of the characters didn't make logical sense in many cases. Many times I felt like I was back in Jr. High reading a role-playing fantasy book. Not enough depth. The two things I did like were 1) the concept and 2) the ending. It also gave me a layman's understanding of quantum mechanics. When compared to Jurassic Park and some of Crichton's past novels, this one just doesn't cut it. Overall, I think he has seen the money and knows how to write to make a strong movie, not a strong book.
Rating:
Summary: I could not put this book down!
Review: I loved the mix of science and history in this book. The Story line was such that I lost many hours of sleep, I just could not put the book down. This is one of Michael Crichton's best works. I was sad to come to the end of this book, I just did not want it to end. I hope that there is a movie based on the book soon. If you want a book that you just can't put down than this is your Book.
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Summary: Who cares what I have to say? However, it couldn't hurt.
Review: Crichton, once again has written a novel which leads one to ponder the truth of the fantastical. In this novel, he includes part science fiction, part factual science, and part history. With a captivating plot and an unusual approach to time travel, this book is deffinitely worth reading. The reader will most probably walk away questioning the possibility of time travel.
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