This is a must-read book for all modern medical doctors, who wish to be useful to the society, to improve their diagnostic skills, their approach to patients, especially when they want to promote health and wellness in the society. COVID-19 has exposed all the lacunae in the present style of medical practice, where everyone was groping in the dark and several were seen fishing in troubled waters; but it seems now that even COVID-19 is not enough to teach them a lesson. Using the case histories, the author exposes the pitfalls in present style of medical diagnosis and management and suggests directions for change.Citing pitfalls in COVID-19 management, he gives future directions for managing such pandemics and the need for a global policy in health care and disease care.