Title: This is a must read if your an engineer or not!
Review: I have read books 1-5 atleast 5 times and I enjoy them each time as much as the first time. I don't know what it is but this is one of the best series that I have read and I have read alot in recent years. I've been waiting for the 6th book for the last 5 years since I've discovered the series. My books are very well worn from their use.
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