To easily search for an ISBN, turn a textbook to the back cover. There will be a bar code with many numbers. The ISBN will be published to the right. It consists of a series of numbers separated by dashes. Once you identify the ISBN of a book, then you can proceed to find used books.
If you do not know the ISBN of the textbook you need:
Click on your web browser to open to your home page.
Type http://www.directtextbook.com in your address bar.
In the new window, type in the name of the book title.
Write down the ISBN for textbook.
Check prices for the textbook.
Close the browser window.
If you have the ISBN:
Open your web browser.
Type in http://finderscheapers.com.
Enter the ISBN into the search bar.
Review prices for cheapest comparison of purchase.