Richardson has photographed more than 30 stories for National Geographic. Richardson's work has taken him around the world covering issues of food and the environment, cultures and travel, landscapes and perils to the night sky. His ongoing coverage of food and agriculture issues has been a centerpiece of National Geographic’s coverage of world food. Richardson is also known for his documentary photography of small towns and rural issues. CBS News Sunday Morning twice profiled his 35 year-long journal of Cuba, Kansas. Richardson lectures and teaches internationally and leads travel groups for National Geographic Expeditions. Known for his dogged research and devotion to craft, he lives in Lindsborg, Kansas, where his work is featured at his Main Street gallery, Small World.