Numerology is the ancient science, psychology and philosophy of numbers - based upon the numbers 1 to 9; each number highlights strengths, challenges, and hidden potential. Numerology is popular in Tibet, China, India and in ancient Greece. This book helps you to develop your intuition, contact your subconscious, and align to your natural rhythm.
I borrowed this book from the library and it was a good starting point but if you're really interested in following numerology you'd probably be best to buy it as I felt that I could only really use the parts valid for this point in my life.