Metagestures, a collaboration between Carla Nappi and Dominic Pettman, is an homage to Vilém Flusser’s 1991 book Gestures (Gesten in the original German), which the reviewer has alas not read. Owing to this ignorance, I’m somewhat unclear on the significance of the gesture, which seems to me a superfluity, one step removed from more easily graspable themes. Looking through the table of contents, where the authors’ treatments of “The Gesture of Writing,” “The Gesture of Speaking,” and “The Gestur...