Behind the mask: Hans Georg Berger’s voyage of discovery – in pictures

On the subject of his relationship with the French writer Hervé Guibert, Berger writes: ‘Our project was unusual, distinctive: we decided that the object of our research would be to portray ourselves, mutually, on a journey, or rather, perhaps, in an exploration of intimacy. For us, the mutual portrait was the hub of a broader aesthetic reflection on the meaning and value of portraits and self-portraits’