Something strange is happening. COVID-19 is spreading even where compliance with public health measures are high. Many people know this from personal experience. Friends, family, and possibly they themselves are getting ill, despite religiously wearing masks. How can this be? And yet ... it be This little book is not anti 'mask.' In fact, the whole purpose is to explain to people who have good reasons to worry about the coronavirus how the 'science' shows plainly that not all 'masks' are created equal, and so if one really wanted to protect themselves, one would need to completely alter the strategies they employ. That said, it calls into question the whole rationale for universal compulsory mask mandates, since they don't actually require masks that 'work.' If you are concerned about taking measures which actually work, which prevent pain and suffering, and even death, this book is for you. The "we're all in this together" crowd may wish to look elsewhere; any dystopian novel will do.