French Academy 
What Number are you? – Numerology Complete Manual 

Numerology is an ancient science through which does not predict the future, but is related to the personality of each of us; it is used to define ourselves with our different personalities to the place we are to occupy a general level, professional and sentimental. It is considered one of the oldest analytical techniques in the world, more than two and a half millennia ago, Egyptian priests and Babylonians used it as a way to learn about others and for the understanding of human psychology. Much of numerological knowledge, is also attributed to the teacher-philosopher Pythagoras, who is said, before accepting a student in his school, examined it by name and date of birth. In fact, the character dimensions of each person, are drawn by assigning to each letter of the name and surname of its corresponding number. With his school Pythagoras came to the unit on the subject of interpretation, going beyond what could be the social order and the different religions of the period. More particularly, according to him, the numbers are the essence of things and everything can be reduced to a numerical expression. Numerology is therefore the discipline that studies the meaning of the numbers, which draws so precise the close ties that human life (microcosm) has with the Universe (macrocosm). This study is based on the tradition that our name, day, month and year of our birth, are the most simple and immediate to know deep and then come to understand the characteristics that identify our personality, because of our behavior, and our possible aspirations and inclinations, increasing, so the degree of awareness. The numerology say that everything, even what is abstract, can be reduced to a numerical unity, then giving a specific meaning to each one of them

In Numerology take into account the basic numbers, from 1 to 9, and the dominant numbers 11, 22 and 33, called ‘Numbers Masters”, that have a significant importance because it transcends the world of the nine basic numbers and amplify the characteristics of the numbers that are obtained from their reduction (2, 4 and 6).