list of grains

Is there anywhere a list of the different types of grains and what types of beer they are used for?

I bought by mistake some Light Munic barley to use with wheat for my HefeWeisen. I later realized that I should have got a Pils or some other barley.

I know there are very many types, but it would be nice to have a general clue what each would be used for. For example, what would a Vienna be used for?

Thanks for answering a newbe question.

BYO has a nice table that has grains from all over the world. Hope this helps!

Brew Your Own: The How-To Homebrew Beer Magazine - Grains and Adjuncts Chart

Really though, it all comes down to personal preference. I used Vienna for IPA and Pale Ale, yet that BYO chart says Marzen and Oktoberfest.