WalMart Stores is an American public corporation that runs a chain of large, discount department stores. It is the world's largest public corporation by revenue, according to the 2008 Fortune Global 500. Walmart was founded by Sam Walton in 1962. Walmart recently announced a change to its corporate logo which has not been changed since 1992.
The new logo shown alongside introduces the following changes

The name Wal-Mart is now one word Walmart with a different more softer font.
The Star in the middle now moves to the right but is shown as a sunburst in a bright yellow.
The tag line - Save Money. Live Better is at the bottom of the logo.

The previous logo shown alongside consists of the name Wal-Mart written in blue with a star in the middle representing the hyphen. This logo has been in existence since 1992. If you see the history section below, you will see how this logo has pretty much remained the same since 1964.

History of the Walmart Logo

	1962 - 1964 Sam Walton names his new stores WALMART. The Walmart name was presented in just about any font/style available to the printer.
	1964 - 1981 Also known as the "Frontier Font Logo," this was the first official and consistently used logo.
	1968-1981 The Discount City mark was used in print advertising, on the uniforms/smocks, in-store signing, and other things. However, it was never used as building signage or in an annual report.
	1981 - 1992 The logo was updated again in 1981.
	1992 - 2008 The star was adopted as an update to the existing logo in early 1992.