According to Cheese.com there are over 1800 types of cheese known to exist, yet most people don’t stray from about three or four. For me, my main type of cheese is mozzarella (because of the impressive way it absorbs flavour), and my runner-up is halloumi (also because of its absorption properties when heated). But I have only tried about twelve different types of cheese which amounts to something like 0.7% of all types, so clearly my knowledge of the topic is metered greatly.