/b/ask-keith/posts/do-i-need-to-purchase-an-isbn-for-my-book-where-is-the-best-place-to-buy-oneQuestion: Do I need to purchase an ISBN for my book? Where is the best place to buy one? Answer: An ISBN, or International Standard Book Number, is a unique, 13-digit numerical identifier assigned to a particular edition or format of a book. I...en-USTelligent Community 10https://www.authorlearningcenter.com/b/ask-keith/posts/do-i-need-to-purchase-an-isbn-for-my-book-where-is-the-best-place-to-buy-oneWed, 30 Sep 2026 02:19:45 GMT809ccca5-04d2-44bf-8f5c-ff0a6d33c80b:6e11aa9f-8660-442c-9331-cb728791d6daAnonymous0<p><span>The point about each format needing its own ISBN is really useful. I hadn&rsquo;t realized that the paperback, hardcover, and ebook can be treated as separate editions. I&rsquo;m based in Italy, so I&rsquo;ll also need to check how that works with the Italian ISBN system before publishing.Regards from Torino, Salvatore&nbsp;</span></p><img src="https://www.authorlearningcenter.com/aggbug?PostID=153&AppID=2&AppType=Weblog&ContentType=0" width="1" height="1">