USPS stands for the United States Postal Service, the country’s backbone for the mail services, including letters and other envelope-sized mail, as well as going up to packages of different sizes and shapes. Your USPS mail gets delivered right to your doorstep all throughout the year. USPS tracking is a way to track packages you’ve either sent through the US Postal Service or are expecting to be delivered to you, be it a purchase or a person-to-person package. The USPS has two types of tracking of packages available, namely retail and electronic. Retail USPS Tracking refers to tracking made available by the US Postal Service at any of its locations, where you fill out the relevant form which will be either a sticker or in the form of a barcode, that is then affixed to your parcel, and that has a unique barcode and identification number. You can then track the status and progress of the package using the code given, either online or via the telephone. Electronic USPS Tracking is part of the deal when you use an online service to print postage for your package and hand it over to your mailman, rather than making the trip to the post office.