What is Inflation?

I was talking to J about inflation yesterday. And today I found this very informative google video about inflation. If like me, you are trying to learn economics, this is a must see video.

If you can't see the embeded video, click this link : http://video.google.com/videoplay?docid=-7760821786905609611&q=inflation&total=3116&start=0&num=10&so=0&type=search&plindex=0