A beginner will get some value. With AIAF and google, you can self-educate fairly well. We didn't include everything you might need to know, and any given card may be kind of cryptic without a coach or mentor who has followed agile development for some time. If you need more information than appears on the cards, a colleague of ours named Jonathan Rasmusson has released a book called "The Agile Samurai" and Pragmatic Programmers is running a special on buying the two together. Otherwise, I might suggest Ron Jeffries' Extreme Programming Explained. Agile in a flash makes a great supplement to either of those titles.
Jim Shore's book, the Art of Agile Development, is also pretty close to most of what we propose in terms of how to do agile well.
These cards would be only OK as someone's very first exposure to agile, but they're really designed to be tools that last beyond the beginner phase, and as such, I'd recommend a companion book if you've not been on an agile team yet or read any other meaty material on what agile is.
There's nothing in the deck that we would considered "advanced" knowledge. I wouldn't wait to pick it up if you were just joining an agile team.