Secondary sources are sources that provide information about a legal topic to build understanding, provides references to the primary law, and sometimes include forms. A form can be a model document or a document that can be downloaded and filled in. A secondary source can give you a starting point for drafting documents and alert you to important drafting considerations.
A 50 State Survey is a secondary source that allows you to compare the state law for different areas of law. This is a great tool for researching a legal issue across state jurisdictions.