Meaning of Titles

Whenever I'm looking around at dogs, I'm obviously looking at titles. However, I know next to nothing about working/sport titles from other countries, so I was wondering if there was a list of what the abbreviations meant, and if there were explanations anywhere on what the dog has to do to earn the different titles? I mean, call me a Stupid American, but all I really know are AKC & Schutzhund titles. I don't even really know what you need for IPO! Thanks a bunch!