What Is an ISBN?


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What is an ISBN number?

If you see a set of numbers next to a black and white barcode on the back cover of the book, you're looking at an ISBN code. The International Standard Book Number, or ISBN, makes it easy to identify any book ever published. This code usually consists of 10 or 13 digits. It helps you find the exact edition of a book. Therefore, book search by ISBN is essential for buying or selling books.

How to search books by ISBN?

While you can find a book you need by typing the title and the author in the search field, a search by ISBN will bring you to the exact book edition. BooksRun has one search field for purchase, sale, and rent—you just enter the ISBN code, click search, and get transferred to the relevant edition. You can also search for books you need by scanning their barcodes with BooksRun app for Android or iOS.

How to look up a book by ISBN correctly?

In most cases, the ISBN code is located on the back cover of the book, but sometimes, it can also be found inside the book on the page containing the copyright statement. The 13-digit code starts with the number 978, and the 10-digit code starts with 0, 1, or 2. Make sure you choose the correct ISBN if there is more than one—for example if you're selling a hardcover, put the ISBN that says "hardcover" in brackets and not the one of an audiobook or the whole series.

How to sell a book using ISBN?

When selling your used book to a bookstore, whether online or physical, you may compare the prices in different places (like Amazon or eBay) using ISBN, thus estimating the best price for yourself.

How to search books by ISBN in libraries?

It's easier to search for a specific book if you know its exact ISBN—for obvious reasons. In the library, this knowledge will help you navigate the pool of other editions and find the title you need faster. So when you visit a library next time in search of a specific book (e.g., work materials, materials for your research paper, or some rare fiction edition), find out its exact ISBN in advance to speed up your library search and make it more effective.

Textbook search by ISBN; perks of international and older versions

Searching for books by ISBNs is the fastest and most convenient way to find exactly what you need. As a student, you are given a list of titles (and their ISBNs) each semester, so instead of looking for the textbooks by their titles, use their ISBNs instead. Your list will probably contain all the newest editions (which are usually more expensive than older ones). Don't rush to buy them all at once; instead, ask your professors if older versions are also suitable for their classes. We recommend searching for the ISBNs of the older editions in advance and discussing them with your teachers. Since prices might notably differ, purchasing older editions instead of costly brand-new ones can allow you to save plenty of money. You can also try using international copies since they're technically the same books.

Comparing book prices by ISBN

The BooksRun search system allows you to search for a book using ISBN, instantly find it, and see our price offers. You may also browse pages dedicated to particular categories (like economics or biology) or a certain course.

Updated on November 3rd, 2022