Chance and Uncertainty is a subject with a broad span, in that there is no academic discipline or walk of life that is not beset by uncertainty and chance. However, the way these issues are handled varies widely between disciplines and from one individual to another. Between the authors in this volume there is some overlap but much more eclectic variety. Altogether there are five contributions from natural science and mathematics, six from the social and behavioural sciences, and one from the medical field. The entire range of approaches to uncertainty and chance appears to be represented. All the contributors agree on the relevance of these concepts to their discipline or profession, but the level of abstraction of the contributions varies widely. This is not only a matter of discipline but also, within some disciplines, a question of personal approach. All contributors and editors are scholars of the Universiteit van Amsterdam.