This collection of essays and interviews investigates current practices that expand our understanding and experience of performance through the use of state-of-the-art technologies. It brings together leading practitioners, writers and curators who explore the intersections between theatre, performance and digital technologies, challenging expectations and furthering discourse across the disciplines. As technologies become increasingly integrated into theatre and performance, Interfaces of Performance revisits key elements of performance practice in order to investigate emergent paradigms. To do this five concepts integral to the core of all performance are foregrounded, namely environments, bodies, audiences, politics of practice and affect. The thematic structure of the volume has been designed to extend current discourse in the field that is often led by formalist analysis focusing on technology per se. The proposed approach intends to unpack conceptual elements of performance practice, investigating the strategic use of a diverse spectrum of technologies as a means to artistic ends. The focus is on the ideas, objectives and concerns of the artists who integrate technologies into their work. In so doing, these inquisitive practitioners research new dramaturgies and methodologies in order to create innovative experiences for, and encounters with, their audiences.