Rhetorical Modes in Road or Not a Road

    The second part of the first chapter of The Routes of Man by Ted Conover utilizes about three different types of rhetorical modes.  The most used that i noticed was description.  Every road that Conover visits is described in so much detail that it is almost as if you were there or have been there yourself.  For example one of the roads described, a sacbe, is detailed in the way it was constructed, what was used to construct it, and whether i was curved or straight.  Another rhetorical mode that is evident in Conover's writing is compare/contrast.  He compares the techniques of different civilizations that constructed each road discussed as well as points out the diferences among them.