Shorter review than normal:
I LOVED the premise of words holding a power greater than we could imagine. The words in this book don't motivate people to better themselves, they create fear and chaos. One word destroys a town.
I loved the different timelines. You can that one time line is the result of the other but you don't know which came first and then you have to figure out what happened in between.
Lexicon is witty, fast paced, and ingenious.