I just read this great guide from Duck Typed about AWS Virtual Private Cloud (VPC), it explains in really simple terms what a VPC is and why it's necessary.

The illustrations complement the port perfectly too. 🖌️

By the way it's part of a series of posts that explore other AWS networking features, I suggest those too.

https://www.ducktyped.org/p/why-is-it-called-a-cloud-if-its-not