ELI5: Explain Like I'm 5

Guerrilla art

Guerrilla art is art that is created in public spaces without permission. It often uses outdoor spaces such as walls, sidewalks, and billboards to show the artist's message. Guerrilla art can also use things such as posters, stickers, yarn bombing, and graffiti - anything that can be put in a public space to make a statement. By doing this, the artist is making a statement to people in the public space - they are sharing their thoughts and feelings with anyone who sees it.