Sadie Quarrier, is a Senior Photo Editor in charge of adventure stories at National Geographic magazine, handling responsibility for the photographic scope, budget, and editing of 20 stories a year. She works with photographers on story preparation and research, provides direction while they are in the field, edits an average of 20,000 to 40,000 images per story and collaborates with the photographer and designer on layout picture choices. Her work has been recognized with numerous editing awards. She is a voting member on the National Geographic Society's Expeditions Council and the Young Explorer's Grant Committee, which fund a variety of media-driven projects, and teaches photography at the Society's "Photo Camps" for youth in underserved communities, most recently in India and Costa Rica. She has also been a photo editor and designer at Smithsonian Magazine and is a graduate of Mount Holyoke College.