Muhammad Ali Jumps is a photograph by Thomas Hoepker that I encountered through a teaching example on “critical margins” and annotation, where the image is overlaid with working marks, measurements, and notes that expose how meaning and output are constructed through editorial and technical decisions. Seeing the photograph as a “guide print” with annotations reframed the margin as a site of thinking: metadata, marks, and corrections do not merely decorate the image but disclose process, intention, and standards of judgement. This is relevant to my practice because it validates annotation as a design method—an interface between observation and decision-making—supporting how I externalise reasoning, build diagrammatic clarity, and make iterative experimentation legible rather than hidden.