Fangirl is about twins Cath and Wren who are headed off to college. Cath is your typical fangirl (hence, the title). She's obsessed with Simon Snow, which is a Harry Potter-esque series. She writes a Simon Snow fan fiction on her blog. Her sister Wren has pulled away from her once they head off to college. They've been attached at the hip all of their lives, and it's hard for Cath to deal with Wren's absence. Slowly, Cath makes some really great friends and starts to come out of her shell. In fact, as Cath becomes more comfortable at college, Wren heads into a downward spiral of college-ness (drinking, etc.).
Not-so-ironically, Cath was my favorite character. I like how she always had a sense of who she was, and she was okay with being herself even though everyone around her was trying to get her to do otherwise. I like that she was an observer, too. While her sister barreled head first into college life, Cath sat back and took everything in stride. Don't get me wrong, she had internal turmoil about being on her own at college. But, on the outside she seemed as cool as cucumber.
I enjoyed this book, even though I couldn't relate to any of the characters. Rainbow has a way of writing that feels conversational. So even though I couldn't relate to the story line, the characters felt like real people.
Have you read Fangirl? I bought the Collector's Edition that has fan art in it, which was pretty cool!