This is one of my favorite books, the 'consumorism' isn't bad, or poorly potrayed. The author uses quotes and discriptions of bands, to help illustrate the tone and style of the book's individual chapters (she also does a bit of a 'life lesson' at the opening of each chapter about love, life, and friendship that any girl (no matter how much of a die hard goth) will melt at. the dark humor is softly used (imagine Tim Burton's Nightmare Before Christmas's humor, set in a highschool) but my first reaction to the entire novel when it first came out when i read it was Beetlejuice, only toned down with not as much adult material.
the sexual material is not too extreme with some kissing, and Charlotte never sees the boy entirely unclothed (boxers still on, nothing too graphic) while the descriptions of the dead teens are a bit gross, they're not very extreme, if your kids could watch "Scooby Doo on Zombie Island" (which was rated Y7) they could handle the minimal gore and almost non exisistent violence in this book. Language is not skimped out on, though it is infrequent, they do hit you with h****, s***, f***, and a few other insults from the tough-as-nails secondary main character, Scarlett.
overall this is one of my favorite books out of modern titles with a beautiful echo of Edgar Allan Poe's horror tales, as well as MANY CLASSIC LITERATURE REFERENCES throughout that will have intelligent teens squelling over the poetry of it all.e
P.S. this isn't much of a tear jerker, if you're afraid of how depressing it will be. Death is merely like entering another level of schooling (literally) and it is also nearly painless (she feels herself unable to breathe before she's seemlessly in the world of the dead.
Christain veiws are not compromised too much, as she has yet to reach Heven yet she has the belief that she will, but she finds out that she has not been sent down there either.