The volume brings together a selection of papers from a symposium on Conditionality held in the University of Duisburg on 25-26 March 1994.Ten years after the Stanford symposium, the Proceedings of which were edited by Traugott et al. (1986), the area of conditionality is revisited in a synthesis of issues and aspects with insights drawn from the wider framework of general processes of conceptualisation. One major question is therefore what conceptual categories fall under conditionality or how far the notion of conditionality can be extended.The volume represents the up-to-date re