Recenlty I brought Dr. Priyanga de Soyza's Mokvana book. It is a personal development guiding book, but in extra ordinary approach. When I go thorough that book quickly (I did not found leisure time to read that book totally concentrate manner)I found some pages about book "The richest man in babylon" which is written by George S. Calson.
This is a book which describe the science of most of wealthiest countries, nations and people. I wish to read both of this books end of this hard working week days.