You know, I would never have thought that would be a problem. As Eldon says, though, there are bound to be instruction books. And I bet if you ask the people where you get your supplies, they might be able to point you in the right direction.
If you go on youtube and type in lefthanded crochet you will find lot of people who crochet left hand and they show you how. That is the way my left hand daughter is learning.