Mean Girls of historical fiction.
Mean Girl gets a second chance.
Mean Girls rule the school.
Mean Girls hiding hearts of gold.
Mean Girls take it to the gritty extreme.
The Adult Fiction
Just one Mean little Girl.
Mean Girls all grown up.
Mean Girls of short stories.
The ultimate Mean Girl.
And a few non-fiction for good measure
Mean Girls do college.
Mean Girls of history.
And, of course, the book that inspired it all
Who would you add?