On Tue, Nov 12, 2013 at 12:22 PM, xan <x...@0l3.de> wrote: > What is ISBN-13 for? Until now, I always thought it extended the number of > possible registered books but it can’t if all of it’s extra digits are > fixed. >
The 979 prefix was also added, doubling the size of the available space. The other advantage to ISBN-13 is it's also the EAN, bring it into line with all the other things in the world that are sold through retail channels. > - Could we implement a bot which adds missing ISBN-10/13 based on the ones > that are there? You then wouldn’t have to bother adding both. > Yes, that could be implemented. Better yet would be to just normalize them on input and store them normalized. Tom
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