In order to get to Gay Talese’s study you have to leave his Upper East Side town house and go down the elegantly curling stairs, into another entrance, with another set of keys, and down another flight of steps. The bunker, as he calls it, is a long, narrow room that is bigger than many Manhattan apartments, with a bathroom, shower, kitchen, several couches, two desks, a table and chairs. One does not, however, lose the feeling of being underground. One also has the unmistakable sense of being inside his mind.