Book excerpt: Following the success of The Light of Paris, The Light of New York, and The Light of Tokyo, lensman Jean-Michel Berts turns his masterful eye to the ancient city of Istanbul. This exotic destination is revealed in Berts's otherworldly black-and-white photographs, taken at dawn, when the deserted streets and waterways are wrapped in a mystery all their own. The city's renowned landmarks and hidden corners are captured as never before, framed by Berts's camera obscura. With an evocative text by Alessandra Ricci, The Light of Istanbul is a spectacular volume on this enchanting city.