IGS is located on the first floor of Moses Hall (ground floor if you are entering at the level of the east courtyard; one floor down if you are entering from the north side of the building).
Moses Hall is on the southeast side of the UC Berkeley campus. See the campus map for further detail.
IGS offices and the IGS Library are open Monday - Friday, 9am to 5 pm. The library and most IGS events are open to the public. See the Events page for a calendar of upcoming events.
The Institute's main address and general contact information is:
109 Moses Hall
igs [at] berkeley.edu