As the Five Man Electrical Band so wisely observed many years ago: Signs are everywhere. "Do this, don't do that - can't you read the sign," they sang in 1971. It's the Man keeping us down, you see.
The Argentine creative director Fernando Barbella has a different take on the concept - and the future - of public signage.
For several years now, Barbella has been maintaining a funny and provocative blog called "Signs From The Near Future," in which blends images from everyday life with lateral thinking on the future of various technologies.
What kinds of signs might we see 10, 20, or 50 years from now?
"I'm not trying to play the 'futurologist' sort of role or even trying to predict anything," Barbella said from his offices in London, where he now lives and works. "The idea is to provoke some thinking about the rise of all these emerging technologies that are aiming to improve our daily lives, but making us more dependent on them at the same time."