Enter Your ISBN's:

(Separate each with a new line)


  • "Do you have books in good condition? Go to cash4books.net, type in the books’ ISBN numbers (which you’ll find on the back cover or on the copyright page in the front of the books), and see if you can get cash for them. Complete the transaction online, print out a prepaid mailing label, pack up those books and send them in. In just a few days you will either receive a check in the mail or a deposit to your PayPal account. You won’t pay a cent— not even for postage... Your humble columnist has been cleaning out her burgeoning library, pocketing more than $200 so far."
    Mary Hunt
    Woman's Day magazine, Sep 2008
  • "The entire process was easy and straightforward. I appreciate that and will recommend your company to others."
    Amy V. - Blue Bell, PA
  • "Everything from the website layout to the email notifications and excellent service, not to mention the best price I found for my used textbooks, makes Cash4books.net THE BEST place to sell used books!"
    Janice H. - Houston, TX
  • "A+ Best return for my books! Great Service, very easy to use & fast payment! THANK YOU!"
    Heather W. - New Haven, CT
  • "This service is simply amazing! I am so impressed with the smoothness of the process, the convenience of the service, and the amazing value for my books! I am also extremely impressed with the turnaround time with payment. I cannot recommend this service enough to anyone who wants an effortless bookselling experience. Thank you so much for a great experience. I'm spreading the gospel immediately!"
    Nicole L. - Brooklyn, NY
  • "Very professional company. Easy to use. Real people. Real checks arrive in the mail. My wife didn't believe me until she started getting all the checks in the mail. Good way to pay off debt! Thank you for providing such a great service."
    Raymond E. - Charlotte , NC

Turn books into cash at Cash4Books.net

We Match Prices

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Sell Your Books In Four Easy Steps:

  1. Type the ISBN's from your good condition books into the form above (look on the back cover, above the barcode). Press the Enter key after each ISBN. Click 'price my books' for a quote. (View examples of books we buy)
  2. Give us your contact information and payment preference by going through Checkout. We offer payment via check or PayPal.
  3. Ship your books to us for FREE. Print a label right from your computer, or we will mail you labels. Specific instructions are provided after submitting your books to sell.
  4. Get Paid, FAST! We will mail you a check, or pay you via PayPal, within 3 business days after we receive and process your books.

Your Book's ISBN

What is an ISBN?

A 10 or 13 digit number that can be found on the back cover or inside the front cover of almost all books.

You may enter the ISBN with or without the dashes, and don't leave off the leading zeros. Sometimes an ISBN can end with an X.

Cash4Books.net will accept either the 10-digit or the 13-digit ISBN. Example:

Use the 10 digit or 13 digit ISBN from your book

13-digit ISBN's should start with the numbers 978. Your book may have a 10-digit ISBN, or a 13-digit ISBN, or both (if your book has both, only enter the 13-digit number).

(Trouble finding the ISBN?)


NEW! Watch our video on How To Sell Your Books.

And, check out our strong and growing media coverage page.


Top 5 Questions & Answers

  1. Have you received my books yet?
  2. When will I get my money?
  3. Do you buy collectibles or antiques?
  4. I entered a lot of ISBNs. Why are you not buying my books?
  5. How will I ship my books to Cash4Books.net?