What is an ISBN and how can I use it to search on the catalologue?
ISBN stands for International Standard Book Number which is a unique numeric identifier used by the book trade to differentiate between each version of a book published. It may be 10 or 13 digits long depending on when it was assigned. The ISBN can be found on each book published. To search by ISBN on the catalogue you just need to enter the number in the ISBN search field on the catalogue.