How can we drive a Led matrix display?

Many people ask me how we can drive a led matrix display?
Driving a Led Matrix display is based on a concept named "Persistance of vision"
for example The led matrix consist of 64 leds ;theoretically we need 64 output from a microcontroller which is practically impossible so people found a good way to persist the cornea of the eye by sending the output to first column then 2nd then 3rd very fast and looping back another time from the begining with a frequency the eye can't distinguish .....
remember to drive first column you give it ground for a moment and in the same time the data are fed to 8 rows.......................