Minimalism is like taking everything extra off your sandwich so you can focus on the important stuff. In art, it means taking away all the extras so you can really see the parts that matter.
Imagine you have a coloring book page with lots of different shapes and lines. If you color everything in, it might look pretty, but it can be hard to really pay attention to any one part. But if you only color in one big circle, and leave everything else blank, you're focusing on just that circle.
Minimalist art tries to give you just the important parts, without anything extra distracting you. Instead of lots of colors and shapes, you might see just one color or one shape. Sometimes you might see really simple designs, like just a line or a dot on a blank page. It might look plain, but it can actually be really cool to see just how much you can get from something so simple.
So when you see minimalist art, remember it's like a sandwich with just the most important parts, or a coloring page with just one big circle. It's a way of making sure you can really see and appreciate the parts that matter most.