The Library currently has 5 series of books that offer pro/con arguments on various topics. Not all of them contain the same topics, so you may have to search several of them for your topic.
If you are looking for a specific topic, look at your results list. Do you see any relevant books? If not, you can click on the Series searches and then refine your results by going up to the search box and adding relevant terms in front of the series search. You may have to try several different terms.
Examples:
You can often find the table of contents information and the subject information by clicking on the Description bar.
You can also find additional books by using the Subjects you find listed under the Contents section.