We took advantage of the space under an existing wooden staircase. As the client wished, we designed and manufactured a built-in library with storage drawers. The staircase is equipped with handrails made of wood. Then we continued with this vertical composition and we elongated the edges of each segment of the library. The bookcase’s partitions exactly continue on the railing, which makes the whole impression more interesting. The bookcase is practical and holds a is able to hold a large quantity of books.