Heidi by Johanna Spyri
The book is very good for students of German 1 level. The grammar is easy, the structures are recognizable and the vocabulary is generally either already familiar or easy to guess from the context. The illustrations are also very helpful. The only fault that I found with this book is the lack of post-reading activities. There are only 6 exercises at the end of the book, so I have to create other activities myself. I plan to propose two chapters every time, as they are quite short and the story flows with no problems. A CD would also be very useful and would allow the students to listen to a native speaker. However, I suggest this book to German teachers, not only for the qualities of the book itself, but also because the story is already familiar to the students. They will not feel intimidated by the idea of reading a whole book in a foreign language, on the contrary they will enjoy it.
A sense of achievement
German students, like myself, will feel a real sense of accomplishment upon reading an entire book in German. Heidi is well weighted and manages to capture the sweet relationship between Heidi and her grandfather, despite the very limited vocabulary. More books at level 0 should be available.