The International Standard Book Number (ISBN) was introduced in 1970 to provide a unique identifier for books. At the time, ISBNs consisted of 10 digits. The basic structure of the ISBN has remained the same over the years, although some changes have been made to accommodate the growing number of books being published.
Voracious readers know that every book has one thing in common. No matter what genre, length, publisher, or art that adorns its cover, every book has an ISBN. That is, provided it was printed after 1970.
You’ve likely noticed a barcode with a serial number on the back of the book you’re reading. It’s easy to think that this is just for the cashier at your local bookstore to swipe, but it’s so much more than that—it’s an ISBN!