Have you noticed the mysterious pieces of artwork have been appearing on walls across Hull? The first of the tiles was spotted was outside our building which read: "Because of your smile you make life beautiful".
The artwork has certainly got people in the office talking, wondering what it's all about and who could've done it!
Lucy first noticed it and said: "I noticed the white tile on the exterior of our building. We didn't authorise this or give permission so technically it is vandalism.
"It is cemented on our wall so it has raised the question is whether this art or vandalism?
"Personally, I love it, and even though it's not an official City of Culture work, it has brought a smile to a lot of our employees this morning."