Q. How do I find a book on the shelf?

First, you need to look up the item on UCL Explore and find its call number. Then, depending on where it is located, you need to follow the instructions for finding books on the floor in question. See http://libguides.ioe.ac.uk/content.php?pid=376762 for full details.  Staff are always happy to help if you are having trouble finding what you need so just ask!