Using the elegant 57-story Norwest Center in Minneapolis (completed in 1989) as an example, here's a step-by-step photo essay on how such an urban giant comes to be: choosing the site and harmonizing with it; finding the rationale and logistics of construction; putting on finishing touches. The brief, well-organized narrative and crystal-clear color photos make this fine nonfiction. Intelligent, informative foreword by the architect, Cesar Pelli; glossary.