Emacs Power Usage

Customization options

another way is using the customize options, which will help us
setting variables and saving the settings:

We can access customization through the menu-bar
Options -> Customize Emacs

We can also use M-x customize.
we navigate and customize variables using the customization buffer
(which has it's own mode "custom")

emacs variables may contain any value. emacs uses dynamic binding
and is strongly typed.

The mode line:
gives us information regarding our current buffer.
it will normally contain the buffer name the buffer mode
and some indication as to where we are in the buffer (this too
can be customized)
Meir Maor