Talk about bank cards ??

Hey. I would like to read more about bank cards (Visa, MasterCard, etc.), the types of cards, how they are arranged and what the numbers mean. I want as much information as possible (not for carding and not for skimming). Just got a map and I want to know as much as possible about it. To use it for all 100.

Please send interesting links. I'd like to read, watch.