They're a quartet (and maybe then some) of books about a girl who falls for a vampire in a small town, and the vampires sparkle in the sun. There are also werewolves that are really more like shifters that shift into wolves, and there's some vampire versus werewolf stuff to win the Super Ordinary Basic Girl Who's So Plain But Is The New Girl So She's ~Interesting~ And ~Unique~ And Not Like The Other Girls Here. It's not meant to be a comedy I don't think, but it's kind of hard to take the books seriously. There was a vampire craze like maybe ten years ago or something maybe more and it spawned a lot of random vampire stuff like Twilight. And then that spawned its own fanfiction that got printed as a book and turned into a movie, and you really don't need to go read that or watch that unless you want to know how people perceive certain communities and dive into the hate for that on YouTube.