The big steps greet each on alternate floors, and the three-dimensional space of Chongqing gives people a new experience of different dimensions. The main wall is equipped with a large volume bookcase, completely rid of the traditional treatment. Highlighted by irregular arcs, the mountain contour line extends to the top to echo the theme of “hill of books”. The mirror at the top, like the boundless sky, is capable of stretching the span of the space infinitely. The tree on the stair bookshelf symbolizes good fortune and wealth. As one of the must-visit spots of the space, it also enhances the overall tone of the spatial vitality.