An agent is a person employed to act on behalf of another person called the principal. There are various ways an agency can be created, including express agreement, implied agreement, ratification, and by necessity. An agent has duties to conduct business with reasonable care and diligence according to the principal's instructions. An agent has rights like indemnification and retaining property until paid. A principal is bound by an agent's authorized acts but can also be liable for unauthorized acts under certain conditions. An agency terminates through completion, agreement, expiration, or other events.