Social Media Ethics and COVID-19: Well-Being, Truth, Misinformation and Authenticity explores ways that some of the best and worst moments of the pandemic resulted from the interconnection of social media and ethics. The ethical challenges social media poses for corporate providers, government officials, and users existed well before the outbreak of COVID-19: What responsibility do corporate providers bear for inaccurate information posted by users? What responsibility do users bear? In this “post-truth” and polarized world, who defines “accurate information”? During the height of the COVID-19 crisis, public health agencies, emergency management agencies, and traditional news media used social media to disseminate or to track information, while users found communities for shared values or experiences. At the same time, users posted and amplified inaccurate or misleading scientific and health information, engaged in hate, and escalated conspiracy theories that have proven detrimental to the public health response to COVID-19. Edited by Pamela A. Zeiser and Berrin A. Beasley, this collection brings together work from leading scholars in communication, English, philosophy, and political science to examine the ethical use of social media during COVID-19, offering both a multidisciplinary understanding of the subject and tools for managing the challenges found at the intersection of social media, ethics, and COVID-19.