The Association for the Advancement of Philosophy and Psychiatry (AAPP) was established in 1989 to promote cross-disciplinary research, educational initiatives, and graduate training programs in philosophy and psychiatry. Philosophical methods bring to psychiatry a kind of analysis and critique that are invaluable in their clarity of thought, meaning, and application to practice. But over the years, we also have found that, in addition to having its own philosophical problems, psychiatry also informs philosophical theorizing itself, and that the field of “philosophy and psychiatry” is developing into its own interdisciplinary field.