Edward S. KrebesEdward S. Krebes is a Professor Emeritus in Geophysics in the Department of Geoscience at the University of Calgary. He has published many peer-reviewed papers on seismic wave propagation theory in leading journals such as the Journal of Geophysical esearch, Geophysics, Geophysical Journal International, and the Bulletin of the Seismological Society of America. He recently co-authored and published another book, Seismic Forward Modeling of Fractures and Fractured Medium Inversion (2017). He was an Associate Editor of the journal Geophysics. His primary research interests are in theoretical and computational seismology, and seismic wave propagation in particular. Read More Read Less