Jiao et al.’s paper, “How to Identify Food Deserts: Measuring Physical and Economic Access to Supermarkets in King County, Washington” evaluates the ways to identify food deserts in a specific county in Washington State. The authors measured accessibility to supermarkets based on geographical information data. Supermarkets were split into various categories based on economic cost of products. The authors found that combining these two aspects was successful in analyzing and identifying food deserts. By analyzing five counties in Washington, the authors were able to elucidate information regarding the health and economic state of each county.