James F. Doyle is a professor of Aeronautics and Astronautics at Purdue University. He received a Dip. Eng, from DIT, Ireland; M.Sc. from University of Saskatchewan., Canada; and PhD, from U. Illinois, USA. His main areas of research is experimental and computational mechanics, Wave propagation, and nonlinear structural dynamics; special emphasis is placed on solving inverse problems. He has published a number of book on these topics. Professor Doyle is a dedicated teacher and pedagogical innovator. He is a recipient of the Frocht Award for Teaching and the Hetenyi Award for Research, both from the Society for Experimental Mechanics. He is a Fellow of the Society for Experimental Mechanics.