Ira Block is an internationally renowned photojournalist and filmmaker who has produced more than 30 stories for National Geographic magazine and its affiliates, National Geographic Traveler and Adventure. Having started his career in newspapers, where he earned numerous press club awards, he is now a sought-after lighting expert whose editorial work has taken him around the world. He is also frequently called upon to review and critique the latest digital cameras and lenses, as well as for commercial and corporate work, and he produces and directs videos and short films. Mr. Block’s coffee table book Saving America’s Treasures was a collaborative effort among the Clinton White House, National Geographic Society, and the National Trust for Historic Preservation. His photographic exhibit “Faces of Hope,” portraits of survivors and images of objects retrieved from the aftermath of the World Trade Center tragedy, is part of the permanent collection of the National September 11 Memorial and Museum. He has taught at the School of Visual Arts in New York and at Durham University in England, and he has conducted workshops around the world in conjunction with National Geographic Expeditions.