If you're that kind that often feels lost at lunch time when people begin talking about economy, the various indexes and acronyms, and economics theory this is the book to ease your pain. Although somewhat convoluted in describing some of the concepts, the books does a great job going through all the important pieces and factors that define our economy at the beginning of this century, being impressively current besides the fast paced changes we've witnessed in the past couple years.
It goes from explaining trading concepts and currency value, passing through Globalization and the economy of the Virtual goods and services, to Outsourcing, Immigration and even Green Economy.
Highly recommend if you're a beginner to these concepts. Not very amusing those already used to these concepts.