Arrows have been a critical part of logo design through the years. Inferring motion, speed, precision, they often appear on sports-related brands. The most famous graphic design arrow is a hidden one.

A person was driving behind a FedEx van when they suddenly noticed something in the logo that they'd never seen before - and now they can't unsee it ...

The arrow in the FedEx logo." And it turns out many people had no idea there was a hidden design in the logo. "Took way too long to figure this out," said one person.