Gibson was an apprentice of Dorothea Lange and Robert Frank, though his work has never reflected the larger cultural sensibilities or agenda of either photographer. Gibson’s work is instead concerned with a private sense of perception that he expresses through his focus on singular objects, gestures, and moments. In the series "The Somnambulist," Gibson created images that have a fragmented, hallucinatory quality, which suggests the disjointed, disorientating experience of sleepwalking. Gibson’s work is primarily known through the books he produces at Lustrum Press, a business he founded to publish his own work. "The Somnambulist" series includes a trilogy of books featuring dramatic but simple compositions that suggest incomplete narratives drawn from the periphery of consciousness.