ISBN Search. I was wondering how an ISBN is chosen for a book. On lulu.com you can publish your own book and it gives the option to add an ISBN, but in order to make it 'official' I was wondering if it has to be registered somewhere or if there is some 'official' method of chosing the numbers.. International Standard Book Number. can you have different ISBN book numbers with different publishing companies? One book two different ISBN numbers?. International ISBN Agency. 539.623.721.0.. How are ISBN (book numbers) chosen. An Author's Guide For All Things ISBN can you have an different ISBN book numbers with two publishing companies. Search for Books by ISBN on AbeBooks.I have a list of 500 books with just title and author. I need to know the isbn of each one of them and dont want to manually enter them. Is there software or online batch system to make search easier and just adds the isbn to the titles.. I'm from India can
