This novel doesn't get as much love as Green's other books, but I thought it was quite hilarious. I loved the footnotes, which were both entertaining and educational. I really must try out the Theorem to see if it truly works. There are a few punches thrown around, but it's really not that bad. Sex isn't mentioned as much as his other books, but in one scene, it's fairly clear what's going on between two secondary characters. Other than that, it's mostly mild talk and some making out, no big deal. The language... well, as I have mentioned for his other books, his characters tend to curse a lot. In this book, at least, there is only one F-bomb because the two main characters use the word "fug" instead. The companies mentioned are mostly fast food restaurants, like the CSM review said. There is beer drinking, but the CSM reviewer forgot to mention at one point, two of the teen characters drink moonshine, which is illegal for anyone, even if it is easy to get. Still, this novel is not as graphic as many teen novels are these days, and these negative elements are thrown in with a purpose, to develop plot. Overall, this was a really smart and funny story that anyone who thinks of themselves as a nerd/dork/geek should definitely read.