Amazon is one of the largest companies in the world - but people have only just clocked the hidden messages in its logo.
The company has around 310 million customers worldwide and processes a whopping 66,000 orders per hour across the globe.
However, the company has undergone dramatic changes since its public launch in 1997 - including revamping its logo six times. In 2000, Amazon changed its logo to include the iconic curved tick under the letters 'A' and 'Z', which is said to represent the smile of its happy customers.
