Package delivery is the process of transporting goods from one location to another, typically from a seller to a buyer. This service is commonly used for online shopping, where customers order items and have them shipped directly to their homes. Delivery companies, such as UPS, FedEx, and DHL, play a crucial role in ensuring packages arrive safely and on time. The delivery process usually involves several steps, including order processing, packaging, and transportation. Once a package is picked up, it is tracked using a unique identification number, allowing customers to monitor its journey. Upon arrival, the package is delivered to the recipient's address, completing the delivery cycle.