Art destruction is when someone purposely damages or destroys artwork. Just like how you might break your toys if you're angry or frustrated, sometimes people do the same thing with art. It's not a good thing to do because art is often created to have special meaning or to be beautiful, and destroying it can be very sad for the person who made it or for other people who appreciate it. Think about it like this: Imagine you spent a long time building a tall tower out of blocks, and someone came along and knocked it over just because they felt like it. That's kind of what art destruction is like. It's important to respect other people's art, just like you want others to respect things that you create.