The IBSN NUMBER

[Tom]

I always see it but never knew what it really was

IBSN.org

[url="http://www.bookwire.com/bookwire/bookwire.html#mem"][/url]

 

[Tom]

The ISBN is a unique machine-readable identification number, which marks any book unmistakably. For 30 years the ISBN has revolutionized the international book-trade. 159 countries and territories are officially ISBN members.