The fun interactive book. This picture book has a lot to offer. Because you can do much more with it than just read it or look at its funny colorful pictures. Here, children aged 2 and up can become active themselves: they can shake the book, rock it, rub it, tap on it, or turn it upside down, depending on what the little story requires. For example, they can shake the apple tree, tickle the tickle monster Kalle, or knock on the door of a mysterious castle to see what happens on the next page. A book full of surprises for plenty of play, fun, and excitement.