Subject Headings are special search phrases used by librarians to identify a major topic. They are sometimes difficult to guess, but through keyword searching you can find the appropriate subject heading.
W&M Libraries has an Outstanding collection on Atlantic History, but there are always going to be books we don't own. Use WorldCat & Interlibrary Loan to order books we don't currently have in the collection:
The W&M Library looks small from outside, but the collection of books is massive (part of the library is underground, and we use high-density shelving).
Start with your topic. Example: I'm interesting in the experience of children in the Atlantic World.
Key words are: Children & Atlantic world.
Sample search one:
Too many results! Try children AND "atlantic world"
Why do these works come up?