What signs do office buildings need?

Outdoor: building name identification, parking instructions, building layout, publicity column, and multi-directional signs on the roof and wall of the building.

Indoor: the background wall of the main desk, the index of the total floor of the hall, the floor index, the publicity column, the channel diversion label, the warning sign, the desk sign, the department sign, the personal nameplate, the bulletin board, the rules and regulations explanation sign and the safety sign.