Glenn Roe commissioned us to develop an interface that would track and visualise textual changes in three editions of Raynal’s Histoire. We used computational analysis to match and track paragraphs of the text across editions, and developed new approaches to layout that reveal structural as well as textual changes; the end result is a web interface that enables exploration of the text across multiple scales. In this presentation we will demo the interface and outline the entangled data / design processes that formed it.