Can I help you?
Yes, I'm looking for a book on the presidential election system in the United States.
Well, all of our textbooks are arranged by subject and course number in the back of the store. Is this a required text for one of the University's political science courses?
No, it isn't. I've already looked through all the political science books in the back, but the ones I saw only had a few pages, at most, on the topic.
How about the paperback section? There may be something there.
Okay.
Or better yet, you should try looking in Books in Print.
I've never heard of that. What is it?
It's an index that lists all of the books currently available from publishers. If you have a specific book in mind, you can look under the author's last name.
But I don't.
Then look directly under your subject, presidential elections.
What happens if I find a book I want?