The four-storey bookshelves rising step by step shape the 19F of Huangpu Center into a brand-new office lobby space in the form of a library. Functions such as meeting, discussion, leisure, and learning are rolled out in sequence. The multi-scene arrangement of furniture and multimedia equipment enables the lobby to be transformed into an exhibition hall or a lecture hall. The 20F and the 19F spatially continuous. A coffee shop is located on the upper floor.