- "'A Compendium of Common Curses and Their Counter-Actions, The Dark Arts Outsmarted, Self-Defensive Spellwork... wow..."
- —Hermione Granger[src]
Self-Defensive Spellwork is a book teaching the reader about defensive magic. It was one of the books the Room of Requirement brought in for Dumbledore's Army. Seeing this and other such books helped convince Hermione Granger that she and the others were doing the right thing by participating in the group.