another good read is Fordlandia:
http://www.amazon.com/Fordlandia-Hen.../dp/0805082360

paired with Ivar Kreugar, The Match King:
http://www.amazon.com/s/ref=nb_sb_no...the+match+king

on the tangent of Sapien

"crossing the Dark Divide, where Big Foot Walks"
http://www.amazon.com/Where-Bigfoot-...8511247&sr=1-1

Wilderness and The American Mind:
http://www.amazon.com/Wilderness-Ame...8511281&sr=1-2

Hobo: by eddie joe cotton is a good one:
http://www.amazon.com/s/ref=nb_sb_ss...ripbooks%2C370

finally

Hobo Sapien
http://www.amazon.com/s/ref=nb_sb_ss...ripbooks%2C753