An electronic version of this book is freely available, thanks to the support of libraries working with Knowledge Unlatched. KU is a collaborative initiative designed to make high-quality books open access for the public good. More information about the initiative and links to the open-access version can be found at... and Miriam Felton-Dansky’s Viral Performance proposes the concept of the viral as an essential means of understanding socially engaged and transmedial performance practices since the mid-twentieth century.