H Haken Stuttgart: B G Teubner 1973 pp 311 price DM 62 During the past 25 years quantum field theory has become one of the foremost methods in the theory of solids. There is no shortage of good monographs on field theory.
(in French) G Toulouse and P Pfeuty Grenoble: Presses Universitaires de Grenoble 1975 pp 278 price FF 65 Of all the important developments in theoretical physics over the last 20 years or more, the recent burgeoning of the renormalization group in statistical mechanics and in field theory has surely been the least well served by general reviews and introductions. Though exciting in their overall tenour and useful to the already active researcher, these have been exceptionally difficult of access even from immediately neighbouring fields.