Name Numerology utilizes the numerical values of letters to provide information about the qulaity of a name. The Chaldean system uses numbers 1-8 (restarting at number 1 every 8 letters) and the pythagorean system uses numbers 1-9 (restarting at 1 every 9 numbers). For example, in the Pythagorean system: A=1, B=2, C=3, D=4, E=5, F=6, G=7, H=8, I=9. There exists other methods for calculating name numbers and meaning. Here is an interesting place to start (https://www.youtube.com/watch?v=ZmDnfjCE1iQ)
When performing calculations, letters are replaced with their corresponding numbers and then the numbers are added up to get a single number. In the case of the name TIM, for the Pythagorean system it would = 15 (T=2, I=9, M=4; 2+9+4=15).
There are many opportunities to get brief name readings and information.