Karen Christopher is a collaborative performance maker, performer, and teacher. Her UK-based company, Haranczak/Navarre Performance Projects, has been engaged in creating a series of duet performances for over a decade. Mary Paterson is an independent writer, researcher, and curator. She is the coauthor of Joshua Sofaer: Performance Objects Participation, also published by Intellect, and Challenging Archives: An Encounter with Franko B.