"I’m currently on sabbatical from my normal job.  I’m a professor of english literature at Oxford University, a muggle post-secondary school, not unlike a wizarding Mastery just usually with more study subjects involved.  I received my doctorate researching the implications of the psychology of fiction books on culture.  I’ve been teaching university students for over ten years now, most of whom are thinking about their own doctorate programs by the time they meet me.  I’m well versed in these books and their subject matter, and thus how you might interpret it from a magical context."