I love(d) the Nancy Drew books! In fact, I would really love the whole set and I would read them now as an adult.
I remember that both Carolyn Keene and the person(s) who wrote the Hardy Boys were just pseudonyms and the books were written by a variety of people.
I saw the Nancy Drew movie when it came out a few months ago, in fact I went as close to opening night as I could. How's THAT for dorky???