Eric Hoffer’s book, “The True Believer”, is a good, quick read. I remember reading it in High School and realizing that it made perfect sense. Hoffer writes in a very clear style, and demonstrates real understanding of human nature. Today’s Obama supporters include a lot of “True Believers”.
I find myself frequently calling today's current crop of democrats "True Believers," after having read (and reread) Hoffer's great little book. I recommend it most highly.