As with any "frontier" the American west had its share of opportunists, dreamers, hard working folks, bigger than life characters, and dangerous misfits.  The book explores lesser known outlaws and lawmen and takes away the layers of myth surrounding many well known characters like Jessee James and Billy the Kid.  Pat Garrett's life was interesting and his interview about tracking and killing Billy the Kid told it like it was.  For anybody with an interest in America's frontier days this is a great read.