Book excerpt: Focusing on mountain ranges that are relatively unfamiliar to most geologists, this work expands our view of tectonics beyond a standardized textbook approach and illustrates both the extraordinary variety of mountain ranges over the world through time and many of the basic similarities they display. Originally published in 1987. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.