This collection discusses different aspects of the COVID-19 pandemic, which began in December 2019 in Wuhan, China, brought together under the slogan of "social worlds". It is a book dedicated to thinking a posteriori about the implications and consequences of the pandemic, bearing in mind that it was a challenge (political, social, economic and philosophical) that tested the limits of human nature and the condition of humans in a world whose logic seems to slip away.In this sense, this volume brings together different approaches to this topic, ranging from philosophy to sociology, and from...