Thatcher Hullerman Cook is a documentary photographer based in New Hampshire and South Carolina. His clients are primarily humanitarian aid and development organizations that work with refugees and other people affected by war, economic upheaval, and natural disasters. His clients include international non-governmental organizations (NGOs) which have sent him on assignment to over sixty countries.

What Thatcher's students have said:

"The teacher, Thatcher Cook, was an incredibly devoted, accepting, and challenging workshop leader who is a wonderful & inspiring human being!"
- Suki Hanfling, Watertown, MA

"Thatcher Cook is an extraordinary person, photographer, and teacher. His dedication to the art form and his spirit are truly inspiring."
- Timothy Briner, Brooklyn, NY

"Thatcher is a gem, his teaching is invaluable. He has a special eye, noticing special moments for a photo as well as what individual students need."