codes and ... conspiracy?

Also from The Bookseller:

If you take the ISBN number of any book and multiply the first digit by 10, the second by nine, the third by eight, und so weiter, and then add all the answers together, you get a total that is always divisible by 11.

Lovely! Goes in the category of either ‘Trainspotting’ or ‘Conspiracy’.


Anonymous said…
so isbn will be changed.

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