Leslie Pham's blog

This area chart illustrates the proportion of every generation in the US Congress from the year 1920 to 2020. Despite being visually pleasing, informative, and interactive from the first look, this chart can confuse its viewers with convoluted details and unclear size assessment.   The chart stands out with its creative layout. There is a selection of clearly distinguished colours that help users to easily differentiate the data subjects. Each generation has its share properly drawn in the chart. This complicated dataset is arranged quite neatly in only one visualization, which makes the chart comprehensive and time-saving for its users.  The captivating illustration, however, does not so succeed in its required function. It is packed with too many details, such as different colours, shapes, and a long time range. Such attributes overwhelm the viewers with a huge amount of information to process. Questions then arise. Should the users focus on the size of each colour? Or shoul...