They are about a girl named Cammie Morgan, who attends an all girls school... for spies :) It is about a few of her years at the school, and how her life goes from simple (if anything spy related can be called simple) to dramatic to absolutely terrifying!!
Ally Carter's new series has one book out so far! The first book is called "Heist Society"!! Another awesome book!!
It is about a girl, Kat, who has spent her life as a thief, but she decides to leave that life and become a "normal" girl. She realizes that, after "braking a rule", she isn't going to be able to stay there. Especially when her old friend Hale (W.W. Hale) suddenly shows up the day she is kicked out of her school. She has to go back to her old ways of stealing in order to hopefully clear her father's name in a large art theft.
ALL THESE BOOKS WILL HAVE YOU HOOKED :D