The United States Postal Service (USPS) is the primary postal agency of the U.S., with a long history that traces back to 1775. As an independent government agency, USPS has grown into one of the largest organizations in the world, employing over 800,000 people. The service is a member of the Universal Postal Union (UPU), enabling global cooperation with other national postal services. This means USPS can ensure the delivery of mail to nearly any part of the world. Within the U.S., USPS provides quick mail delivery, with express mail guaranteed to be delivered the day after dispatch. The agency is self-sustaining, funding its operations through the sale of postal services, stamps, and related products rather than relying on taxpayer money.

The history of USPS's branding begins in 1829, when the first postal seal featured the Roman god Mercury, symbolizing the speed and reliability of the service. In 1837, the seal was redesigned to feature a horse and rider, a nod to the horse-drawn mail delivery system commonly used in the early days of the U.S. postal service.

In 1970, following the Postal Reorganization Act that established USPS as an independent agency, a new logo featuring a blue and white eagle, representing power and American spirit, was introduced. The eagle's image was accompanied by the words "U.S. Mail" and "United States Postal Service," with a series of stars to emphasize the nationwide reach of the service.

A more dynamic redesign occurred in 1993, with the introduction of the "Sonic" eagle logo. This version brought the eagle's head to the forefront, making the design feel more emotional and energetic. The eagle appeared to be in motion, symbolizing speed and agility. The updated logo also featured the organization’s name, "United States Postal Service," in blue with a red horizontal line separating two parts of the text.

The USPS icon, which remains in use today, focuses on a stylized white hawk's head in profile, symbolizing strength and speed. The blue background represents trust and reliability, essential qualities for a postal service that handles millions of deliveries each day.

The font used in USPS's branding features dynamic, italicized letters without serifs, further emphasizing movement and modernity. Distinctive features of the type include unique gaps in certain letters and a lowered horizontal bar on the "A."

Today, USPS continues to evolve, maintaining its role as a trusted and essential service in the U.S. with a global reach.