Mysticism and spirituality (Simone Weil), 20th century (Jürgen Habermas, Ludwig Wittgenstein, Michel Foucault, Simone Weil), Antiquity (Augustine, Plato), Graeco-Roman religions (From mythos to logos, Greek Eschatology, The notion of daimon), Myth analysis (Greek Mythology), Philosophy of religion (Neo-wittgensteinian philosophy of religion, Reformed epistemology), Research methods (Analytics of power, Discourse analysis, Philosophy of language)
Mysticism and spirituality, Cultural change, Cultural theory, Culture and cognition, History of religion, History of research on religion, Indigenous Religions, Knowledge systems, Myths and rituals, New religions, Phenomenology of religion, Religion and cognition, Research methods, Rituals, Symbols and classifications, Tradition
Mysticism and spirituality (Psychological approaches to mysticism), Canon (Functions of scripture, Processes of canonisation), Feminine philosophy, Gender, Hebrew, Judaism (Early Judaism, Hasidism, Jewish mysticism, Kabbalah, Midrash as interpretative activity, Modern Judaism, Rabbinical Judaism), Yiddish
Mysticism and spirituality (Sufism, Traditionalism), Africa in general (Sudan), Cultural history (Neo-Sufism, Religiosity), Europe in general (Islam in Europe, Neo-Sufism), Islam (Islam and Muslims in Europe, Islamism, Modernization and reform, Sufism), Meeting of cultures (Islam and the West), Middle East in general (Arab world, Iran, Israel, Turkey), Other countries (Malaysia, Singapore), Religion and politics (Eurasianism, Islam), Religious movements (Neo-Sufism, New religious movements, Typology), Security (Islamism, Middle East, Religion and terrorism)