Hegel: A Very Short Introduction (Very Short Introductions Book 49)
Kant: A Very Short Introduction (Very Short Introductions Book 50)
Kierkegaard: A Very Short Introduction (Very Short Introductions Book 58)
Schopenhauer: A Very Short Introduction (Very Short Introductions Book 62)
Freud: A Very Short Introduction (Very Short Introductions Book 45)
Wittgenstein: A Very Short Introduction (Very Short Introductions Book 46)
Jung: A Very Short Introduction (Very Short Introductions Book 40)
Descartes: A Very Short Introduction (Very Short Introductions Book 30)
Hume: A Very Short Introduction (Very Short Introductions Book 33)