In "Harry Potter", what subject is taught by Professor McGonagall?

One of my favorite characters from HP. Maggie Smith is perfect!

MC Merci, The title was altered not updated.

PMP, the first book in the UK is known as "Harry Potter & the Philosopher's Stone"; the name was updated for the American market.

RushMama2112, for me it's Maggie Smith, Robbie Coltrane & Gary Oldman..

RushMama2112, In everything she does, one of the true greats

I love Harry Potter!!!!! Thank you J K Rowling for such an amazing series of books 📚