This chart on Vitamin D is really interesting and extremely informative/ effective. It moves from general information about vitamin D to individual specifications according to gender/race/location. It uses graphs, stats, labeling, color, shapes and pictures to convey information. It also provides sources. There are mistakes, however, in the design which will make my analysis richer. Some graphics need explanation or context. Some aspects of the design are ineffective and seemed to have been chosen arbitrarily, which diminishes the chart's quality.