Masks have been a ubiquitous and oft-politicized aspect of the COVID-19 pandemic. Years of painstakingly organized pre-pandemic planning documents led public health experts to initially discourage the use of masks, or even insinuate that they could lead to increased rates of spread. Yet seemingly in a matter of days in spring 2020, leading infectious disease scientists and organizations reversed their previous positions and recommended masking as the key tool to slow the spread of COVID and dramatically reduce infections. Unmasked tells the story of how effective or ineffective masks and mask mandate policies were in impacting the trajectory of the pandemic throughout the world. Author Ian Miller covers the earliest days of the pandemic, from experts such as Dr. Anthony Fauci contradicting their previous statements and recommending masks as the most important policy intervention against the spread of COVID, to the months afterward as many locations around the globe mandated masks in nearly all public settings. With easy-to-understand charts and visual aids, along with detailed, clear explanations of the dramatic shift in policy and expectations, Unmasked makes the data-driven case that masks might not have achieved the goals that Fauci and other public health experts created.