This study aimed to verify the state of public libraries with complex functions in Japan from the viewpoint of two types of organizations and spatial connections. Six public libraries were selected for the case study using published materials. The following results can be found by analyzing the organization types, development policy, and spatial connections with field surveys. Firstly, the four cases that reorganized their operational structures in the earlier planning stage also realized high spatial sharing. Secondarily, these cases were well-operated, allowing different departments to share offices and accept the sounds and voices generated by the activities in each facility.
