Reply to Max for Live

In the process of downloading software for production, I came across Max for live. My friend explained it to me a little and showed me kind of what it does. It helps you create your own instruments for use in Live if I'm not mistaken? I understand its not something that can be learned in just a conversation or two, but is there anyone who could give me a tip or two, or possibly point me in the right direction on the best tutorials out there.