what are shipping labels are barcode stickers or digital documents that contain important information about the sender, recipient, and delivery method of a package. Shipping labels typically include the destination address, the sender’s return address, tracking number, and a barcode used for tracking the package through the postal system. Shipping labels are used by all major carriers, including USPS, UPS, FedEx, and DHL, and can be generated online or at shipping stores. They play an essential role in ensuring packages are delivered accurately and efficiently.