This is a system of Numerology that has been known for ages. Unfortunately, it has been largely lost in the West, but is still practiced in India. If one has the number that is clearly seen on one's date of birth showing up in one's life, this book can explain it. It even has a different letter/number system for adding up the letters in your name, one that is reminicent of "Cheiro's Book of Numbers". If you can find a copy of the Cheiro book, I recommend it, as well as the late Mr. Johari's book. Harish Johari's book is easier to obtain most likely, so I recommend getting it first.