What is The Twilight Saga?

problem is it was supposed to be an ADULT ROMANCE but her publisher decided teens would read it more so there is something wanting but its worth checking out from the library at least to read if you dont want to buy it they are extremely easy reads would take you probably 2 days max to read them even though they seem huge trust me I read slow. But its gonna end up being kinda like Harry Potter in that a lot of people are reading them so it would be worth it if even just to be able to make conversation.