Harriet The Spy's Theme

I think the author of this book, which is "Louise Fitzhugh," wanted the reader to know that "Knowing a lot of people 's thought is not always a good thing. Sometime you could get problem from knowing too many things." This story is about Harriet an eleven-year-old girl who wants to be the writer in her future and so now she is collecting the data by being a spy and write down all the things that she knew in her notebook. She always have to be careful about the things that she do and every time she get into someplace like some body's house. some day, she might get caught by someone. And it will be more dangerous for her someone has read her book and tell everyone about the things that she wrote.