What are some good books for a 15 year old girl to read?

so now that it's summer and i want to sit by the pool i was thinking of getting some books from the library to read. i read the hunger games(the first one) and i LOVED it! but i don't really want to read the others because i don't think they'll be nearly as good as the first. i also read the percy jackson series, and i loved it. i also read the lying game by sara shepard (she wrote pretty little liars the books) and i LOVED it too!! i also like kinda romantic books like the notebook. i watched the movie and i loved it<3 so any suggestions? thanks! :) and if you could put like a little description of what its about too(: