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The ISBN (International Standard Book Number) consists of 10 digits. The first digit signifies the country of publication. The next set of digits is the publisher's code (the largest publishers seem to have the shortest codes); the next set is the code for the item itself and the last digit is the check digit, derived from an algorithm that checks the accuracy of the other numbers. The different sets of numbers are divided by hyphens. Hope this helps. Jyl Chickowski Supervisor, Library Processing Spring Branch ISD Houston, Texas jwolf@tenet.edu On Sat, 5 Mar 1994, Mary M. Lough wrote: > Could someone write back and tell me what the numbers of the > ISBN numbers stand mean. Does the last one or two check the > others to make sure they are correct? > > The person asking needs a documentation to site in his research > paper. Send that also. > > Thanks. > Mary > > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * > > Mary M. Lough, Media Specialist, Margaret Beeks Elementary > 709 Airport Road, Blacksburg VA 24060 703-951-5700(w) > mlough@radford.vak12ed.edu