This paper tracks Labanotation’s travels, using the system’s path as a guide to understanding how and why human movement came to be a central object of scientific, political, and popular concern over the course of the twentieth century. In doing so, it opens up a window into new facets of modern culture, uncovering a world in which human movement was conceived of as the seat of an enormous power—one that could, among other things, reveal the innermost self, stabilize shaky economic systems, and reshape human political communities. In particular, the paper uses Labanotation to highlight the unexpected material and philosophical connections between two seemingly disparate settings: Weimar-era art and science and the work of human resources in mid-century American and British white-collar offices. More broadly, it also suggests new methodologies for making connections between the history of dance, the history of science and technology, and political and cultural history writ large.