The work of San Francisco-based food and lifestyle photographer Nader Khouri is constantly evolving to stay fresh and relevant. Throughout his career, he has explored his own signature ways of using shadows. If light is a photograph’s surface, shadows are its foundation—the context that gives depth, meaning, and a sense of place. Nader has a great eye for using cast shadows as graphic elements—a technique that’s particularly effective in shooting packaging. Here’s some new work he lit, “shadowed,” and shot in collaboration with his longtime stylist colleague, Jillian Knox, with whom he shares an obsession with beautiful, elegant bottle design.