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Mary-

The numbers in an ISBN number are as follows:

The first numbers refer to the country:  1  stands for the USA
The next set of numbers name the publisher:  06 is Harper, 670  is
Viking, etc.  The smaller the number, the bigger the publishing company,
usually.

The next set of numbers name the exact title of the book -- each book a
company publishes has its own special number.

The last, one-digit number is the result of a computer formula that
checks the identity of the whole thing.   My understanding is that it is
mathematically connected to the rest of the numbers somehow.

That's all I know!

Shellie Mueller
entiat@u.washington.edu


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