Presents an advanced theoretical treatment of global seismology. This book provides a survey of both the history of global seismological research and the major theoretical and observational developments made over a decade. It is intended for graduate students and to professional seismologists, geodynamicists, and geomagnetists. "...[T]his book is a remarkable achievement and, thanks to PUP, a great value. If you are a global seismologist, there is no excuse for not having this book on your bookshelf--and you should even read most of it! If you are a graduate student, this beast will take a little effort to absorb, but be assured--this really is the right way to think about global seismology."---Guy Masters, Seismological Research Letters