In this study, Josefine Wikström challenges a concept of performance that makes no difference between art and non-art and argues for a new concept. This book confronts and criticises the way in which the dominating concept of performance has been used in Art Theory, Performance- and Dance Studies. Through an analysis of 1960s performance practices, Wikstrom focuses specifically on task-dance and event-score practices as well as through examination of the key philosophical concepts that are inseparable from such a concept of art, and are necessary for the reconstruction of a critical concept of performance such as: ‘practice’, experience’, ‘object’, ‘abstraction’ and ‘structure. This book will be of great interest to scholars, students and practitioner across dance, performance art, aesthetics and art theory.