How many different types of Collie dogs are there?

There are two types of Collies dogs: rough Collies and smooth Collies. Rough Collies are the most well-known type of Collie, characterized by their long, flowing coats and elegant appearance. Smooth Collies are identical in temperament and structure to the rough Collie, but the smooth Collie has a short, dense coat that lies close to the body.