It has more than 10,500 stores across 24 countries - but many Walmart customers are only just deciphering the 'secret' message in its logo. The American retail chain is easily recognised by its logo showing a yellow 'star' after the words Walmart.
The company, which was founded by brothers Sam and James Walton in Arkansas in 1962, has used several different logos over the years. But customers are only just learning what the iconic star in its logo actually symbolises.
In a statement, Walmart said the spark had a connection to its founder: "It's a symbol of the spark of inspiration Sam Walton had when he opened his very first store. It's a symbol of all of the great ideas that have helped to develop our company over the years. And it's a symbol of the inspiration that's inside all of us.