What should I include in my presentation?

I volunteer with a local shelter, and for an event we're doing I said I would make a presentation on pit bull and pit bull type dogs. I will include breed history, characteristics, the difference between an actual APBT and a pit type, that sort of thing. What else should I include? I want it to be informative on the breeds (I will have a short description of every breed considered a "bully") and help dissolve the negative stereotypes surrounding these dogs.

Along with pictures, my dog Eli will be there as a living demonstration :)