The postal industry refers to the system and services involved in the sending and receiving of letters, packages, and other mail. It includes various organizations, such as national postal services like the United States Postal Service (USPS) and private courier companies like FedEx and UPS. These entities manage the collection, sorting, transportation, and delivery of mail to ensure it reaches its intended destination. In addition to traditional mail services, the postal industry has evolved to include digital communication and logistics solutions. This includes services like tracking, which allows customers to monitor their shipments, and e-commerce solutions that facilitate online shopping and delivery. The industry plays a crucial role in global communication and trade.