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by johnobrien1010
3975 days ago
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Other fun book facts: by looking at the length of the number that is the second to last digit in the ISBN, you can tell how many large an ISBN block the publisher bought, which often relates to the size of the publisher. If it's only two digits, they only bought a block of 100 ISBN's, so they're probably a very small publisher. https://en.wikipedia.org/wiki/International_Standard_Book_Nu... |
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