An agent is someone authorized to act on behalf of another person or entity. There are different types of agents including commercial and non-commercial. An agent can delegate their duties to sub-agents or substituted agents. An agency relationship can be created expressly through agreement or implied based on the circumstances. Agents have rights like agreed remuneration and responsibilities such as conducting business with skill, rendering property accounts, and keeping information confidential. Agents can be liable for their actions if their principal is undisclosed, non-existent, or does not ratify the acts.