Another good one, if you can find it, is "The Way The World Works" by Jude Wanniski. It's the book that first put the "Laffer Curve" in print, showing the diminishing returns of high marginal tax rates.
"Radical Chic" by Tom Wolfe is also excellent, if you can find it. A total skewering of the liberal New York elite.
I read "Anthem" when I was about 13. I was working at a concession stand with the mother of one of my classmates and she told me the three books that I must read: "Anthony Adverse", "Look Homeward Angel" and "Anthem". Without a doubt Anthem had the greatest effect on me.