Remember in Chapter 1, you typed your name directly inside print()? Like print("Alex")?
What if you want to use your name in 10 different places? You would have to type it 10 times. And if you make a typo, you fix it 10 times.
There is a better way. **Store it once, use it everywhere.**
A variable is a labeled box. You put a value in it, give it a name, and from that point on you just use the name.
name = "Alex" — put "Alex" in a box, label it 'name'.
Run this and watch.