| A | B |
| Actual Authority | the express and implied powers of an agent |
| Agency by Agreement | an agency relationship that is created by an oral or written contract between the agent and principal |
| Agency by Estoppel | an agency relationship that is created because the principal's action caused a third party to believe that an agency relationship exists. |
| Agency by Ratification | an agency relationship that is created because the principal approved of an agents unauthorized action after the action occurred. |
| Agency by Statute | an agency relationship created by state law |
| Agency law | an area of law dealing with working relationships created between two parties |
| Agent | the individual employed by the principal to work with the third party |
| Agent's Agent | an agent appointed by another agent without the knowledge or consent of the principal |
| Apparent Authority | occurs when the powers of the agent are created by law or circumstance |
| Coagents | two or more agents working together |
| General Agent | an agent that is given the authority to perform a variety of tasks |
| Gratuitous Agent | an agent that works for free |
| Partially Disclosed Agent | an agent that is given the authority to work with a third party but forbidden to reveal the identity of the agent |
| Principal | the individual who gives authority to the agent |
| Special Agent | an agent that is given the authority to perform specific tasks |
| Subagent | an agent appointed by another agent with the knowledge and consent of the principal |
| Third Party | the person or company whom the agent deals with on behalf of the principal |