Elizabeth E. Heilman, Trevor Donaldson „8. From Sexist to (sort-of) Feminist. Representations of Gender in the Harry Potter Series“, . Critical Perspectives on Harry Potter, Second Edition, Routledge, 2008 — 205-bet. ISBN 9781592575992.
Julia Eccleshare „2. The Changing Writer: from Philosopher's Stone to Goblet of Fire 4. The Magicl World of Hogwarts“, . Guide to the Harry Potter Novels, Contemporary Classics of Children's Literature. Continuum, 2002 — 29, 55-bet. ISBN 9781592575992.