Book excerpt: Leading mobilities theorist Mimi Sheller offers an up-to-date, comprehensive analysis of the complex mobility disruptions of the Covid-19 pandemic and its aftermath in this timely Advanced Introduction. It outlines the formation of the interdisciplinary field of mobility studies, arguing that mobilities theory is crucial to planning post-pandemic recovery, sustainable communities, and low-carbon transitions. From tourism to migration to urban infrastructure, to informal and reproductive mobilities, Sheller reveals how multiple im/mobilities are interconnected, as the novel coronavirus reminds us as it hitchhikes across the globe through its human hosts.