What is the theme in A Walk Across America by Peter Jenkins?

Self discovery is the main theme in the book. The story has an obvious theme of a young man that is looking over the country that he is living in but it has an unexpected effect on the young college graduate, Peter Jenkins. He actually finds out a lot about himself along the way. The author had grown up in a world that was very structured and had specific ideas for how a person lived. He had been so sheltered that he didn't truly understand how people outside his lifestyle lived. Peter will continually be faced with realizations that change his ideas of how America and Americans are and at the same time change who he is.