Charisma Bobblehead (Fallout 4)

The Charisma Bobblehead is a miscellaneous item $$ It permanently improves the Sole Survivor's Charisma by 1.

Location
It can be found in the Parsons State Insane Asylum administration area, on Jack Cabot's office desk, close to the elevator. The Secret of Cabot House quest must have been started in order to access the Bobblehead.