<P>Through her engaged and articulate essays in the Village Voice, C. Carr has emerged as the cultural historian of the New York underground and the foremost critic of performance art. On Edge brings together her writings to offer a detailed and insightful history of this vibrant brand of theatre from the late 70s to today. It represents both Carr's analysis as a critic and her testament as a witness to performances which, by their very nature, can never be...