kajan: Thanks… Some authors in the list are Europeans, most are from US. Nietzsche is German, Sun Tzu is Chinese, Khalil Gibran is from Lebanon but lived in US, J. R. R. Tolkien, C. S. Lewis, and Jeffrey Archer are Bristsh, Richard Bach, Joseph Heller, J.T. Edson, Clive Cussler, Robin Cook, Frederick Brooks, Steve Mcconnell and Watts S. Humphrey are from the US.