For this project, you will have the most success searching the library catalog by keyword or by subject. Searching by keyword lets you find books whose titles, authors, and section headings match your search terms. Subject search allows you to find books by the topics they cover, which allows you to quickly browse a selection of pertinent books.
The catalog does not provide much in the way of descriptions of books. The easiest way to learn more about a book before you pick it up at the library is to copy the book's title from the catalog and paste the title into the search box on Amazon.com. Once you locate the book on Amazon, you can usually find a description as well as helpful reviews.