I'm from Niagara Region, so howdy! there is a Tandy leather shop in Mississauga on Tomken drive that from time to time run free workshops on Saturdays for folks. Its a good place to start to learn a thing or two about leather and is right in your neck of the woods. Or if you want to travel to Hamilton look up Tundra leather, they also do classes and are gods of leather work in this area