Books 1-10. 11.
Girls in Pants: The Third Summer of the Sisterhood by Ann Brashares. Yup, I read the first two. What I like most about these books is that Brashares is not afraid to let her characters be selfish, reckless, stubborn, cowardly, often with full awareness that they are acting badly; sometimes they just can't help themselves. Balancing this is the fact that their actions are rarely quite so terrible as they themselves believe, and that they usually end up doing the right thing in the end. Yeah, it's a little bit too neat at times, but then I'm a bit of a sap about some things. As in the first book, the character I liked most in this one was Carmen (in the second book it was Bee), a character who is very unlike me in many ways but who is almost always a better person than she believes.