The books in Vanguard's Library are arranged using the Library of Congress Classification System. This means that books on similar subjects are grouped together using an assigned location "Call Number." So, if you find one book that might be interesting, it is best to browse the shelves around that particular book to see if there is any other books of interest.
Specific Call Numbers on Costuming:
While a book can only be in one place at one time, a book can have multiple subject headings assigned. So, to find all books on a certain subject, it's best to search the library catalog (available from the main library website).
Here are some subject headings that are directly related to costuming.
Check out the "Library 101 Guide" for more information on searching the library catalog.