Ally Carter's Gallagher Girls series is one of the few series that keep getting better with each book. In this third installment, Cammie and her roommates and best friends Bex, Macey, and Liz enter their junior year at the top secret spy school - the Gallagher Academy for Exceptional Young Women. But before the school year starts, Cammie visits Macey at a political convention in Boston, where Macey's father is set to accept the vice-presidential bid in the upcoming election. A high-stakes scuffle on the convention center rooftop turns out not to be the CovOps pop quiz that Cammie and Macey hoped, but a very real kidnapping attempt. The semester is definitely going to be different, with Cammie's aunt turning up as Macey's round-the-clock secret service agent sworn to take a bullet for the girl, lessons in disguise, life on the campaign trail, and uncovering the truth behind the attempted kidnapping. As the girls get older, the dangers of their future careers become a lot more real.
This book has a little less romance than the previous two, but a lot more action and a lot more character development. Don't Judge a Girl by Her Cover also doesn't end so tidily as the other two, which leaves the reader wringing her hands for more.