Eyeliner Explained

Ever felt overwhelmed by the amount of eyeliners they have at Sephora or the drugstore? There are how many types of eyeliners? Then you get to the styles on the eyes, but we'll leave that for another day.  Here I want to take the simplest form of each type of liner (that I know of) and help guide you through this maze of madness.  Since I do not own ALL of the types of eyeliner, I used images found on Google. Let's get on, shall we?