A mail carrier is a person responsible for delivering letters and packages to homes and businesses. They work for postal services, such as the United States Postal Service (USPS), and follow specific routes to ensure that mail reaches its destination on time. Mail carriers often sort mail at their local post office before heading out on their delivery routes. In addition to delivering mail, mail carriers may also collect outgoing mail from mailboxes. They typically use vehicles, bicycles, or walk to complete their deliveries. Their role is essential for communication and commerce, helping people stay connected and receive important items.