The financial times has a covid tracker with log vs linear, daily vs cumulative and absolute vs per capita toggles. I understand log scales and even so, changing these settings really makes me look at the data differently. For example - look at absolute daily data on a log scale and Brazil seems headed for destruction, overtaking the UK amd US. Look at cumulative per capita data on a linear scale and things don't seem so bad for Brazil, but Belgium looks like a disaster.