Saw this on Don’s site. It caught my eye because I never thought about how ISBNs get assigned to books. Check out this post to learn more.

Originally posted on Lit World Interviews: Your book’s ISBN (International Standard Book Number) is the 10 or 13 digit number assigned to every published book, and identifies things like edition, publisher and physical properties. Each particular edition of any published book has to have its own unique number, so you can’t use the same number…

via Should You Buy Your Own ISBN Numbers? — Don Massenzio’s Blog