If you're looking for an easy read and something along the lines of the Twilight series, then this is the series for you.
The Hereafter series is a great choice for young adults and it's safe if you're a concerned parent. There isn't anything more than intense kissing and lovey-doveyness in the story. I was grateful to finally read a young adult novel where I didn't feel embarrassed to be holding the book if a part like that came up while reading in public.
The story is about a young girl who's living in the afterlife between life and death. She meets, saves, and falls in love with a cute boy. It's because of this that she awakens and starts to realize she's a special kind of ghost. The things she goes through are very intriguing and heart-warming to say the least. She eventually must choose whether she'll join the light or the dark in the after life.
Hudson does a good job of creating a group of characters that teens will relate to and enjoy reading about. The plot line and parts of the story aren't necessarily believable, but this is sci fi/fantasy afterall. The ending was exactly what I'd hoped it would be, and I wasn't left disappointed.