A little distraction from everyday fuss and rest with health benefits will help this publication. On its pages there are many pictures that may seem quite simple and somewhere even monotonous. But this is only at first glance, because in fact these are three-dimensional riddle pictures in which you have to consider three-dimensional images. When you master the principle of working with a book, a variety of objects "materialize" in front of your gaze - from animals and plants to complex composite paintings.