Liturgy, 20th century (Luther Renaissance, Radical Orthodoxy), Brotherly love (Eros and agape, Faith and works), Church history (The Reformation), Dogma and creed (Christology and soteriology, Communicatio idiomatum, Doctrine of Trinity, Finnish Lutherresearch, Function of Doctrine, Justification and reciprocity, Lutheran Theology, Theology and gift economy), Ecumenical work, Ethics (Religion and politics), God (Evil, Forgiveness, Theology and social anthropology), History of the reception of the Bible (Paul and Luther), Pastoral care (Pastoral care and Lutheran Theology), Reformation (Martin Luther, Philipp Melanchthon)