The book shop within the Faculty of Mathematics in Belgrade was created by the reconstruction of the office space and its adaptation to a new purpose. The entrance door is designed in glass and thus easier to see from the corridor. The existing opening in the wall was converted into a smaller storefront. The entire length of the free wall of the room was converted into shelves for books. Other elements of the interior contain closed bodies for storing the materials of the book shop. The entire accessible space is covered in wood decor, while in the upper zone hanging lighting is arranged which, in addition to illuminating selected parts of the room in a targeted manner, brings a certain dynamism to the space.