289 pages, indexed. Apart from an ownership signature on the front paste down and front end paper, the book is as new. "To this day, there is a great amount of controversy about where, when, and how the so-called supercontinents - Pangea, Gondwana, Rodinia, and Columbia - were made and broken. Continents and Supercontinents frames that controversy by giving all the necessary background on how continental crust is formed, modified, and destroyed, and what forces move plates. It also discusses how these processes affect the composition of seawater, climate, and the evolution of life." (Publisher)