Michelle, I go to a monthly 'meeting of angels' to learn more about it myself, and try to read up more on each angel. I have a set of Doreen Virtue's Angel Therapy oracle cards, which comes with a (good) explanatory guidebook. This could be somewhere for you to start (if you wanted cards), but there are many books on the topic. I will go out tomorrow and ask which would be a recommended book for you to learn more and let you know, if you would like. Cards are good, not only for doing readings, but for self affirmation.

Just having a quick look on Doreen Virtue's site, she has a book called "Archangels and Ascended Masters" which is described as a "lively encyclopedia", and "Angels 101" for "complete beginners" (amongst others). I have a book called "the Angel Bible" by Hazel Raven. It covers many different angels, clearing energy, meditation, crystals, etc, and is a good broad reference.