The first map only consists of Illinois with the county borders.
The line graph shows all cases of COVID-19 in Cook county. The earliest data is from January 24th to April 22nd.
Next, the map of Illinois compares every county of cases of COVID-19. The data is only on April 15th.
The next map of Illinois is to show a scale of cases.
The following data is between April 12th to April 18th. With the same graph and map purpose as mentioned above.