You can search for ISBN (and a number of other criteria) on the Advanced Search page specific to the Books category. Here is a link to it:
http://www.amazon.com/b/ref=sv_b_0/002-9735973-8648039?ie=UTF8&node=241582011
I have found, however, that Amazon.com updates their website structure periodically, so that link might not work forever. You can also navigate to that page yourself as follows:
1. Go to the main Amazon.com page
2. Click on Books under the Browse header in the frame at the left
3. Click on Advanced Search in the Books tab along the top of the window.
You’ll find the ISBN box just under Publisher, about halfway down the page.
Another really quick way to do an ISBN search is to go to Google, and type in ISBN: followed by a space and then the ISBN number. Google understands this special syntax and will find the book title for you, do a product search for that book, and present you with the first three options it found (through its Froogle product search service), including their prices.
Another good ISBN search tool is Book Sources (Wikipedia). This will allow you to find all the sources where you might buy a book, including libraries, in case it’s out of print and/or amazon.com doesn’t carry it:
http://en.wikipedia.org/w/index.php?title=Special:Booksources
There is also the ISBN Directory which allows you to browse by ISBN number ranges:
http://my.linkbaton.com/isbn/
Finally, there is ISBNdb.com, the free ISBN database, which gives you title & author and publication info and a brief summary of each book.
http://isbndb.com/
Note that the new ISBN system uses 13 digits instead of 10. Some sites will let you search on the old 10-digit number still, but if you find a place that doesn’t, just add 000 to the beginning of the number.
See the Wikipedia article on ISBNs for more information on the new system:
http://en.wikipedia.org/wiki/International_Standard_Book_Number
