Good Chart: Unemployment Rate under Obama in 2011

source: Bureau of Labor Statistics

Bad Chart: Unemployment Under Obama

source: no source

Original Chart

Compared to the original graph, this chart is plotted correctly and showcases where exactly the unemployment rate is stable or not.
In the original chart, the last data point is not plotted correctly and does not show a decrease in the unemployment rate in November, making it mislead the audience to believe the unemployment rate did not change at that month Also, there are way too many colors in the chart and the y-axis ticks could be spaced further out which can distract the viewer.

Compared to the bad chart, the good chart only features one color has a reasonable tick padding, and does not contain that much overlap.
It is also difficult to see the axes in the bad chart The good chart also has annotations that help point the viewer to important data.