With the class method when you put 'p self' person is defined as Person (the class) everywhere in the program
Witht he instance method the class Person is not referred to everywhere. Just where it's called. It referrs to the specific
instance of the class here it's Person.

This from the bottom puts is shown first: "You'll see this as the class is being defined."
then it puts "In this context, self is: "
then "Person"
then "See? self is the Person class." followed by:
We're calling an example class method
'self' is always defined. What is 'self' here? Let's see.
Person
That was self!
we're calling an example *instance* method
'self' is defined here, too, but see how it's an instance of the class."
Which pretty much explains everything for now!