Georg Will studied physics and crystallography a the Technische Hochschule M]nchen. In 1961 he moved to the USA, where he worked at the Brook National Laboratory, where in collaboration with Walter Hamilton the idea was born to analyse crystal structure from powder diffraction data using a POWLS program. A decisive step forward came in the 1980's when he worked with Bill Parrish at the IBM Research Laboratory in San Josi, California. At that time the "two stage method" was developed to its present state, beginning the analysis of computer based profile fitting followed by least sq...