I study at the faculty of political science but Tübingen is a big university with faculties for almost every subject. The faculty of political science has its own building in town, which is quite central so you can easily get there by bus. It has its own library but if you need more, you can go to the main library down the street so everything is quite close. The faculty is rather small (compared to other ones), which I appreciate since you can easily go and talk to teachers and professors. They offer a big range of seminars and lectures every semester but not a lot of them are in English, which could be a problem for international students but it should not a problem to find courses however.