This is the first book in the vampire series that True Blood (and HBO show I believe) is based on. Some friends recommended it to me, saying that it's more grown up than the Twilight series. It is, but only in a bedroom kind of way. The book starts really slow, but by the end I was interested. I'd rate it about PG-13 for explicitness, but a main theme in the book is sex. Same old vampire antics, though.