Imagine you have a bunch of toys in your toy box, but your toy box is too small to fit all of them. So you decide to put some of the toys in a bag and squeeze the air out of the bag so that it takes up less space. This is called compression.
In the same way, compression networks take information (like pictures, videos, and audio recordings) and squeeze them down so that they take up less space. This makes it easier and faster to send the information over the internet or store it on a computer.
Compression works by finding patterns in the information and then using those patterns to represent the information in a more efficient way. For example, if there are a lot of pixels in a picture that are the same color, compression can represent all of those pixels with just one instruction to repeat the same color.
Compression networks are especially important for things like streaming video or music, which need to be sent quickly over the internet without taking up too much space. Without compression, it would take much longer to send or store these files, and they might not even fit on your device!