It is no exaggeration to say that the theory of plate tectonics, developed in the 1960's revolutionized the earth sciences. Its effects are still reverberating. In its first edition Kearey and Vine's Global Tectonics gained an excellent reputation, reflected in reviews and sales, for providing a modern, up-to-date account of this pivotal subject at a level ideal for students majoring in geology. The authors strike the right balance between geology and geophysics. Basic concepts are emphasized but trends in modern research, and outstanding questions are highlighted