This two-volume book contains selected papers from the international conference "Groups 1993 Galway/St Andrews," which was held at University College Galway in August 1993. These two volumes represent the wealth and diversity of group theory. Five main lecture courses were given at the conference. These were "Geometry, Steinberg representations and complexity" by J. L. Alperin (Chicago), "Rickard equivalences and block theory" by M. Broue (ENS, Paris), "Cohomological finiteness conditions" by P. H. Kropholler (QMW, London), "Counting finite index subgroups" by A. Lubotzky (Hebrew University,...