What is an ISBN?

An ISBN is a numerical code given to a book that uniquely identifies it. Up until recently, the ISBN contained 10-digits.

As of January 1, 2007, the book industry began using a 13-digit ISBN to identify all books. The 13-digit ISBN is different from the original 10-digit ISBN only in that a 978 prefix has been added and the last digit in the code, known as the check digit, has changed.

On the UMP website, you can search on either a 10-digit or a 13-digit ISBN. You may also search on ISBNs either using the hyphens or not.

Examples of UMP ISBNs

10-digit ISBNs

0-472-09943-4
0-472-03074-4
0-7453-2582-3
3-598-71690-7
0-89264-165-7
0-89148-092-1
1-879549-12-3

13-digit ISBNs

978-0-472-09943-6
978-0-472-03074-3
978-0-7453-2582-8
978-3-598-71690-4
978-0-89264-165-9
978-0-89148-092-7
978-1-879549-12-8

Please send questions regarding ISBNs to ump.webmaster@umich.edu.



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