Linux Permissions

are you making this up?
For someone like me who comes from a Windows background, Linux permissions were somewhat confusing, so here is a little reminder because from time to time, I do forget (okay, all the time).
First the structure, I have an example file that I will use, to show this file and its permissions, from a command line enter:

ls -al

The output is:

"-rw-r--r-- 1 pi pi 4452 Jul 25 18:01 example.py"