Businessman using cell phone in office, seen from outside of window

Businessman in office seen from outside of window, reflection of man using cell phone outdoors

Construction worker seen through framework

People in conference room, seen through semi-opaque glass wall

Businessman looking through window

Young woman using cell phone

Office workers standing by window, one woman talking on cell phone, rear view

Apartment, buildings lit up at night.

Young woman using cell phone

Young woman using cell phone

Executive sitting in office with feet on desk, rear view

Cocktail party, cityscape and sea seen through window

Roof of office building seen through window