Dozens of wires along Bryant Street in the Mission District. December, 2010.

Dozens of wires along Bryant Street in the Mission District. December, 2010.

Mountain Man on Mid-Market Street. December, 2011.

Mountain Man on Mid-Market Street. December, 2011.

Little Red sliding down Mid-Market Street. December, 2011.

Little Red sliding down Mid-Market Street. December, 2011.

Waiting for the 30 Stockton line off Union Square. December, 2011.

Waiting for the 30 Stockton line off Union Square. December, 2011.

Morning walk on Annie Street in South of Market. December, 2011.

Morning walk on Annie Street in South of Market. December, 2011.

Outside of the Golden Gate Theater. December, 2011.

Outside of the Golden Gate Theater. December, 2011.

Four men in Mexico City. September, 2009.

Four men in Mexico City. September, 2009.

Smoking a cigarette on O’Farrell Street in the Tenderloin. September, 2011.

Smoking a cigarette on O’Farrell Street in the Tenderloin. September, 2011.

Sign love for Nay-Nay on Jones Street in the Tenderloin. October, 2011.

Sign love for Nay-Nay on Jones Street in the Tenderloin. October, 2011.

Nicki writing poetry on California Street. June, 2011.

Nicki writing poetry on California Street. June, 2011.

Early morning walk on Eddy Street at in the Tenderloin. December, 2011.

Early morning walk on Eddy Street at in the Tenderloin. December, 2011.

A group of strangers on lower Market Street. December, 2011

A group of strangers on lower Market Street. December, 2011

Two passerby alongside an art installation by Paz de la Calzada on Mid-Market Street. December, 2011.

Two passerby alongside an art installation by Paz de la Calzada on Mid-Market Street. December, 2011.

A small dog on Eddy Street in the Tenderloin. July, 2011.

A small dog on Eddy Street in the Tenderloin. July, 2011.

On South Van Ness in the Mission District. November, 2011.

On South Van Ness in the Mission District. November, 2011.