Important memory management warning
Before we get into exactly what OOP is, a quick warning.
I'm referring to our memories for a change. If you try to memorize this chapter, you will have to make a lot of room in your brain and you will probably forget something really important in its place, like going to work or thanking the author for telling you not to try and memorize this stuff.
A good goal would be to try and just about get it. This way, your understanding will become more rounded. You can then refer back to this chapter for a refresher when needed.
Tip
It doesn't matter if you don't completely understand everything in this chapter straight away! Keep on reading and make sure to complete all the apps and mini apps.