This pie chart shows the information about highest education achieved by adults in the US. To begin with, we can see that there are categories in comparison which are below 9th grade, 9th to 12th grade, high school and so on. According to the graph, the largest proportion goes to high school at 35%, while the smallest proportion goes to AA/AS at 15%. Last but not the least, for the rest of the categories, the number are ranging from 18% to 23%. In conclusion, this is a very useful graph and it helps to understand the educational environment in the US.