From the “people who can say it better than I ever will” department, Understanding the Churches and Rites of the Catholic Church.
A snippet:
The average Catholic – as well as the average non-Catholic – believes that the Catholic Church is one monolithic church, with one way of celebrating Mass and a single hierarchy which rules that church. However, the truth is much more complex, so much so that I’m reminded of the saying, “I don’t believe in organized religion, I’m Catholic.”
A quick but VERY educational read about who’s all a part of the Catholic Church. Hint: it’s more than just “Roman”.
You’re welcome – I have been wanting to write a post on the Church and all the various rites forEVER but alas, it never really happened. Good luck with your talk!
Thanks so much for this link, Kim — I have to do the RCIA talk on ecumenism in a few weeks, and this will be really helpful!