plotting 2020 reading list

brief description: plot charts of 12-books I have read in 2020, based on enjoyment/usefulness.

1. scatter plot

2. bar chart

3. pie chart/ donut chart

with the addition of wedgeprops = dict(width=0.675), a donut chart could be created

wedges, texts, autotexts = ax.pie(data, autopct=lambda pct: func(pct, data), wedgeprops=dict(width=0.675), startangle=-40, colors=color)