Dr. Arthor Pell was a modern day people, he wrote the book by using his experience, it not a pure theory but the prospective leader or the one who will step to be the management like me can study and use it to be a good pattern style when manage our people. I has read it in Thai version , however I am now collecting money to buy the English version from you, I will reach it soon , I guess, PS. For Thai the under developer country people are poor and not so easy to spent ~ 25$ for a book, however I will do it soon. Any way Dr. Arthor Pell is a great Author, I recommended every body reading his books..