Cat Stevens?

Hey everyone, just was wondering if anyone could tell me more about this man. My dad suggested i listen to some of his stuff, and from what i heard hes quite good. Im learning guitar over the winter and was looking for some inspiration to keep me going at night. I have tried to mimic some of his stuff but its proving harder than i thought. I bought his new greatest hits album "gold" as a guide and the more and more i listen to it, the more i want to learn to play. If anyone has any tips or suggestions, or just likes cat stevens feel free to comment. Later