So you're thinking of all those great books you liked to read when you were a kid, with kid heroes who snooped around and stopped criminal plots, or kids just like you who handled problems much like yours but in an interesting way. And you're remembering just how much you loved those kinds of books, or maybe you still do like reading them, and you'd really like to make one of your own. Well, it's not easy, despite what people say, as kids can be just as picky as adults in what they like. But there are some basics to keep in mind.