Despite having one of the most convoluted and overlong titles in all of art history 'Signs that Say What You Want Them To Say and Not Signs that Say What Someone Else Wants You To Say' is a series of proper mint photographs taken by conceptual British artist Gillian Wearing.
If you couldn't deduce from the title, Wearing's idea behind this one was to get members of the public to honestly reveal their most intimate thoughts.
While some are certainly more 'open' than others, each photo is a surreal and often hilarious insight into the societal and personal anxieties folks faced back in the early 90s.
For more info on these by someone who actually knows what they're on about, have a ganders at what the Tate had to say about them here.