Talk:ISBN
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See http://www.isbn.spk-berlin.de/html/prefix/allpref.htm for details.
Broadly:
0 English speaking areas 1 English speaking areas 2 French speaking areas 3 German speaking areas 4 Japan 5 Former USSR 6 (undefined?) 7 China 8x various: see the cite above for details 9x various: see the cite above for details
Thanks for the "first-digit" correction. The ISBN site explains it nicely. The books I've had problems with are UK editions, in fact almost any that I've tried (see McLibel case, The Surgeon of Crowthorne). Hotlorp
So, can you convert an SBN to an ISBN by simply prepending a 0, or is it more complicated than that? Ckape
- In some cases that seems to work, in others not, possibly because the publisher has (rather naughtily) assigned that number to another book later on. Shantavira 13:15, 5 Jan 2005 (UTC)
By the way, the ISBN manual (http://www.isbn.org/standards/home/isbn/international/html/usm4.htm) states an ISBN is verified if the sum of the weighted digits modulo 11 is 0, but the weights are in reverse order: 10x(d1) + 9x(d2) + ... + 2x(d9) + 1x(d10), whereas this article states the opposite. Just for reference, the two are equivalent, since if you subtract 10x(d1) from one to the other you get (-10)x(d1) which equals 1x(d1) since it's modulo 11. Then you subtract 9xd2 to get (-9)x(d2) which is 2x(d2) mod 11, etc. So the two approaches are the same, but it may be good to specify that in the article. --Joshua Eckroth (josh@eckroth.net)
Shouldn't be the word "monograph" used instead of "book" in the definition --Eleassar777 09:55, 18 Mar 2005 (UTC)
Best ISBN sources?
It would be useful to have information on the best sources of ISBN information for new and used books, worldwide.
I find BookKoob (US (http://www.bookkoob.com/) and UK (http://www.bookkoob.co.uk/)) to be very good, but it would be interesting to know who actually has the largest publicly searchable database of ISBNs on the net.
ISBNDatabase (http://isbndb.com/) are working on getting a large public domain database from libraries, but at 1.6 million is not *very* big yet!
ABE titles (http://www.abetitles2.com/) So far as I know this only contains books *currently* listed on ABE. --PeterR 08:15, 2 Apr 2005 (UTC)
