This is such a fun book! It's kind of like a "primer" for newbie fangirls. It covers a lot of the basics, like popular terms ("canon" and "shipping"), getting started with cosplay, and navigating fanfic. For example, the "Let Your Geek Flag Fly" chapter is all about ways to incorporate fandom stuff into your everyday life, This can be anything from buying t-shirts from your fav indie comics (n00b level) to hosting a themed film/book prerelease party (intermediate) to getting a symbolic tattoo (hardcore -- and yes, this particular section comes with lots of advice and caution). The chapter and section titles are amusing. "[Fandom Intensifies] Geek Girls Online" and "Everyone's a Critic and So Can You" are perfect examples. This book does cover some serious topics, like sexual harassment at conventions and fangirl feminism, but the whole thing overall is so irreverent and fun that even the difficult stuff doesn't seem so scary. 
 Full review posted at Lone Star on a Lark.