 During his career Professor Skinner has held multiple professional appointments.From 1993 to 1996 he was, consequently, the Vice-Chair, Chair-Elect, and Chair of the Theoretical subdivision of the Physical Division of the American Chemical Society and from 2000 to 2004 he was the Vice-Chair-Elect, Vice-Chair, Chair-Elect, and the Chair of the Physical Division of the American Chemical Society.From 2000 to 2003 Skinner was a Vice-Chair and then Chair of the Gordon Conference on Molecular Electronic Spectroscopy.