FW:

The rather broad research field which goes by the name of imprecise probability has enjoyed an ever increasing popularity over the past two decades. Imprecise probability appears, in one or another of its many guises, in a variety of areas of artificial intelligence, statistics, decision theory and epistemology. Interested readers can get a flavour of the field from The Society for Imprecise Probability: Theories and Applications (SIPTA) website.

Building on several forerunners, P. Walley's monumental book (1991, Statistical Reasoning with Imprecise Probabilities, Wiley) has long been the central reference for this area. This spring, however, two volumes will be filling the shelves of the imprecise probability enthusiasts, both of which have been recently announced by Gert de Cooman on his blog.

The first is titled Introduction to Imprecise Probabilities and is edited for Wiley by Thomas Augustin, Frank P.A. Coolen, Gert de Cooman and Matthias C.M. Troffaes. It is a 448 page strong collection of 16 chapters spanning the foundations and applications of imprecise probabilities which is due to be published in May 2014.

The second is a monograph written by Matthias C.M. Troffaes and Gert de Cooman, entitled Lower Previsions. This volume is also to be published by Wiley in May 2014 and, as a matter of an interesting coincidence, is also 448 pages.

There is little doubt that both volumes will contribute to widening the impact of the imprecise probability approach in the uncertain reasoning community.

Hykel Hosni Marie Curie Fellow, CPNSS, London School of Economics