Today's academic discourse is filled with the word 'perform'. Nestled amongst a variety of prefixes and suffixes (re-, post-, -ance, -ivity?), the term functions as a vehicle for a host of contemporary inquiries. For students, artists, and scholars of performance and theatre, this development is intriguing and complex. By examining the history of theatre studies and related institutions and by comparing the very different disciplinary interpretations and developments that led to this engagement, Professing Performance offers ways of placing performance theory and performance studies in context.