Abstract: A shared space divider provides privacy on surfaces. The shared space divider comprises a hub that is placed on a portion of a surface, and at least one partitioning structure coupled to a portion of the hub. The at least one partitioning structure comprises a separator configured to partition the surface into two or more sections. The separator has a ribbon structure, an accordion structure, or a fan structure. The at least one partitioning structure is configured to extend from and retract into or, alternatively, fold out from and fold into the hub. In some embodiments, the shared space divider comprises at least one container for holding items commonly found on the surface. In other embodiments, the shared space divider comprises a clip for attaching to documents. Yet, in other embodiments, images such as advertisements are displayed on at least one of the separator and the hub.