Where does roller derby come from? Where is the ball? How do you score points? Is it like that old movie 'Rollerball'? Can you really punch the opponent in the face? Are fishnets compulsory?
If you recognize yourself in one or several of these questions, then this article is made for you! Otherwise, it is made for your friends who keep on asking them to you!
This is a transcription of an oral presentation for sportspeople who had never heard of roller derby before. The aim was to convey an overall idea of what derby is, where it comes from, its sport and its show facets -- not to overwhelm people with too many or too precise details.