A bit more info from back cover:
Mean girls are everywhere and they never seem to give up. In Mean Girls, Hayley showed you how to end the cycle of mean once and for all. Mean Girls Gone goes a step further. It is a trip inside your heart and soul-a journey of the spirit.
Do you spend your time and energy making sure other girls like you? Do you feel like they control you with their mean? Dive deep inside your heart to see what might be hiding there that's adding to the pain of living with mean.