You can find books through 3 main pathways:
The USA Libraries subscribe to several e-book collections. Some of these collections focus on a specific discipline.
The book's call number tells you where the book is physically located in the library.
In OneSearch, you can look at a book's record for the call number.

The call number starts with F. Our bookshelves are labeled with ranges. Find the F section, then look for the range of numbers this call number falls in.
Books are placed together by topic. Browse for other physical books in a subject you like!