ISBN Lookup

Use our powerful search engine to search by ISBN & compare textbook prices with over 70,000 book sellers!

Search our ISBN database to find cheap books now.

did-you-know? rent-now

Amazon no longer offers textbook rentals. We do!

did-you-know? rent-now

Amazon no longer offers textbook rentals. We do!

We're the #1 textbook rental company. Let us show you why.

FAQs to Find Textbooks

What is an ISBN?

  • ISBN stands for International Standard Book Number (ISBN)
  • Usually 13 digits long, but sometimes 10
  • Used to uniquely identify a specific book edition

Why can't I just search by title & edition?

According to, the ISBN should change any time the product changes. This can mean a new copyright date, corrections, cover, translation, media type (such as hardcover vs paperback), supplemental materials, etc. There are a lot of unknowns when it comes to finding your book using the title alone.

The safest way to be a successful book finder is to search using a unique 13-digit ISBN.

What if I can’t find my ISBN?

The ISBN can often be found on the first few pages of the book by the copyright information. It can also sometimes be found on the back cover, near the barcode. If you’re not sure what your ISBN is, then you can also search by title or author & then select the best edition for you based on other criteria such as copyright.

ISBN Image

How to find cheap books using the ISBN

  1. Search for your textbook.Search by ISBN to make sure you find the correct textbook. If you don’t know your ISBN, search by title, then select the most appropriate edition.
  2. Compare Used, New, & Rental prices.You can also compare textbook prices from other sellers on our marketplace.
  3. Create your account.Create your new account or log in here.
  4. Complete your checkout.We frequently offer coupons, and some items have free standard shipping.

Textbook Price Comparison

In addition to offering you great discounts on used, new, and rental items, we make it easy for you to compare prices from 70,000+ marketplace sellers! Just find the book you want and click "See Prices" next to the Marketplace option.