There has been an immense amount of data and research showing that masks work on slowing down the spread of COVID-19. However, there are also still a large number of people that, despite the evidence, do not believe that masks work or even have any effect at all. There is a lot of misinformation and confusion on how masks work and why they are effective. Hopefully, this interactive guide can teach you, dear reader, why masks work! (Hover over this footnote! --> 0Hover over these footnotes for sources and bonus commentary! There will be more reading material in these footnotes and later in the guide if you want to check out how you can be even more safe. :) )