Booking Through Thursday is a weekly bookish meme about (mostly) books and reading.
Interesting question. No, I think they shouldn't. Categorizing into audiences as YA, Mature Teen, and Adult is enough in my opinion. Although I think it'd be good to know what exactly fits which category. Not just knowing, but having it pinpointed, wirtten down somehwere that YA is, like, 11-14, Mature Teen is 14-18 and Adult is 18+. Simple, but affective. I think that would help the kids to pick something suited for them, as well as the adults who try to gift books to teens.
Okay, that's what I think. Let's see your opinion on the matter. Link me up!