"Crystallography in Molecular Biology," a NATO Advanced Study Institute, was held on September 12-21, 1985, at the Bi schenberg near Strasbourg, France. The meeting, co-sponsored by EMBO and CNRS (Centre National de 1 a Recherche Scientifique), was attended by partici pants from 18 countries. The aim of the course was to gi ve an overvi ew of crystallography related to molecular biology with special emphasis on recent results and new methodo 1 ogi ca 1 approaches. Thi s fi e 1 d of research is expandi ng enormously, partly due to its primordial contribution to biotechnology. Protei n engi...