COVID 19 Myth and Facts ,is a unique kind of book written when pandemic of corona virus started to spread through out of the world and when least were understood about it . Author collected his posts written on the professional site and commented after understanding the nature of illness, how it is spreading and environment like temperature, age of inhabitants, climatic condition, and events coming into the knowledge. Advisory was also put to implement in prevention of illness and what precautions have to be considered. This book also facilitates the learning and exploration of the area of future research and vaccine research. At the end, author has postulated the method of calculation, the way to find number of cases and the time when reach to herd immunity of infection based on two bands of virulency.