Pros - all the basic hiking info. Small topo map. Unique vertical depiction. Few color photos. Good pack size (60 page paperback).Cons - all basic information can be found at NPS Grand Canyon web-site. Detailed, trail by trail info limited to 2 pages. These pages consumed by vertical diagram, topo map and color picture. Little or no trail description, interesting features, sights, etc. Of little planning value. Returned the next day.Try FODORS Grand Canyon - costs the same.