An agreement document between two parties is a written contract outlining the terms, responsibilities and duties of each party involved in a specific business arrangement. This document is necessary to ensure that all parties have a clear understanding of what is expected of them and can protect both parties if any dispute arises down the line. It is essential that the document is thorough yet easy to understand so that all parties agree upon the same interpretation. The best way to ensure this is to keep the language simple, specific and use plain English. Agreement documents provide clarity and peace of mind, allowing both parties to move forward confidently in their business relationship.