If you are studying in a British university you will be required to do a large amount of writing, whatever your subject. The type of writing you do will depend on your subject. On this website, these different types of writing are called Genres or Genre Families.
Some of these Genre Families are more common in some disciplines than in others. For example in business, Case Studies are very common, in law Problem Questions are very common, while in history and philosophy Essays are very common.