How is information stored inside a QR code?
I am trying to find out an overview of how information is stored in a QR code.

I understand that they are read in a matrix format (data can be found both horizontally and vertically) but how are the characters stored and how do they prevent data from clashing if it reads in two dimensions?

I would love to see a chart that shows different characters .etc

Your help is much appreciated.
How is information stored inside a QR code?
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I am trying to find out an overview of how information is stored in a QR code.

I understand that they are read in a matrix format (data can be found both horizontally and vertically) but how are the characters stored and how do they prevent data from clashing if it reads in two dimensions?

I would love to see a chart that shows different characters .etc

Your help is much appreciated.