Philosophy, psychology, and psychologism

Frege

The Bloomsbury Companion to the Philosophy of Consciousness

Schopenhauer, philosophy, and the arts

Cannabis & philosophy

Gottlob Frege

Ontology

The philosophy of mind

Alexius Meinong, The Shepherd of Non-Being

Logic And How It Gets That Way

Schopenhauer, Philosophy and the Arts (Cambridge Studies in Philosophy and the Arts)