I've worked on agile teams for more than ten years. I'm amazed at the quality and quantity of information in this concise little deck of cards. You really could learn how to implement agile principles and values from these cards. My current team has been doing Scrum, XP and Lean practices since 2003, so I thought there wouldn't be anything new for us in these cards, but I was wrong. There are nuggets of information to drive new discussion and improvement, such as the Toyota Production System Principles.
The first day we had the cards, one of our programmers refactored some code to reflect a change in business terminology and got rid of the old code. Lesser programmers might have just hacked in the terminology change, but he did it the right way - harder in the short term, but keeping our technical debt low for the long term. Our ScrumMaster pulled out card #6, Courage, which includes "To always deliver quality work" and "To throw away unneeded code and tests". It was nice affirmation that we did the right thing.
We put cards that interest us up on the task board to think about, and we plan to read and discuss a card at each team retrospective. They're a great learning tool for everyone from agile newbies to high-functioning, experienced teams.