The Numerati is an eye-opening book about just how quickly the technical - and marketing -world is figuring out ways to extract information about people (based on where we click, how we shop etc.). Nearly everything really. I thought this book was an important read after coming to the realization that the Internet is "following" us. Every time I go to a website, for instance, the ads seem to appeal to everything that's going on the world of Kent and Caanan. Just the right ads always seem to be appearing. Scary! Read the book.