Through reportage photographs of people in the private and public environment, Tunnels explores the idea of isolation and the boundaries of knowing others and ourselves. Andre Principe's work is about emotions. In Tunnels, the artist looks at loneliness and the difficulty of communication while also reflecting on the limits of photography itself. The ability of the photographic medium to evoke "ghosts", a feeling of absence, is a recurring themes of Tunnels: people are often shot through windows, with their backs to the viewer or simply hiding away. Principe's photographs communicate important issues around otherness and our inability to live in the present. Tunnels is the first in a trilogy on photographic work about absence by Principe, with Bridges and Walls to follow. The three books are edited like novels dealing with abstract, non-pictorial themes that are usually associated with other genres such as literature or film. Author Andre Principe studied Psychology at Porto University and Film Studies at ESTC in Lisbon. He works with film, video and photography.