WCSU classifies its books according to the Library of Congress Classification System. Books with call numbers (call numbers are the labels located on the spines of the books) start with P-Z are on the 5th floor; books with call numbers A-N are on the 4th floor. Signage on each of the bookshelves direct you to the proper area. Here is a link which details how to find items in the library that is very useful: http://libguides.wcsu.edu/finding