Book excerpt: Each of the eight chapters in this volume addresses menstruation and/or menstrual blood in various media sites with a view to answering the question, what does blood perform? Menstrual blood may be enduringly feminine but it is never just one thing. Menstruation Now contains chapters on: the shifting "conversation" of menstruation in contemporary advertising; menstrual blood and the "female complaint" in Alice Munro's short story, "Chance"; the signification of menstrual blood in legal discourse; blood as a para-text in pornographic films; the placement of Jacqueline Kennedy Onassis's p.