Cracking ISBN and Credit Card Codes

ISBN codes are used on all books published worldwide. It’s a very powerful and useful code, because it has been designed so that if you enter the wrong ISBN code the computer will immediately know – so that you don’t end up with the wrong book. There is lots of information stored in this number.…

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Cracking ISBN and Credit Card Codes

Cracking ISBN and Credit Card Codes

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Cracking ISBN and Credit Card Codes

Cracking ISBN and Credit Card Codes

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