How did we answer that? Contract Law
We got an email asking for assistance with contract law, specifically breach of contract. The email specified a dollar amount, which was greater than can be claimed in Small Claims Court, so we limited our response to resources in Civil Court.
Our first suggestion was to start with Nolo press self-help book. We recommended Contracts: The Essential Business Desk Reference and Represent Yourself in Court: Prepare and Try a Winning Case. We suggested these titles for different reasons. The first because it was about Contracts and might have substantive information on breach of contract. The second because it has valuable information about the court process and what someone is going to need to know if they represent themselves. Nolo books can be found at many public libraries, online via the State of Oregon Law Library, as well as many Law Libraries.