I recommend this book, because the story is really interesting. It is about a competition between wind and sun. They are trying to find out which one of them is more powerful. Although there are some new words and kanji that we have not learned yet, you can still get the meaning from the pictures on the book. I just learned Japanese for about two month, and I can understand the whole book. So it is not that hard. Also, by reading it, you are not only reading an interesting story, but also learning new vocabularies and kanji.