Have you read the Taleb's previous book, "Fooled by Randomness"? I was completely blown away by it. I didn't find "Black Swan" to be anywhere near as interesting, but that could just be because I read it second.
The Black Swan is longer, and has a bit more technical coverage. I liked that, but I've heard from others that it gets in the way of the main point about how to deal with randomness.
Regardless, both books are insanely good. Worth the time and money for sure.
I should add that a few traders I know recommend FBR as the first book a new recruit should read.