In this paper I use the notion of performance, especially as it has been theorized within the science studies literature, to begin to make sense of the history and continuing practices of economic geography. I argue that not only humans perform, but also objects. In this paper, I focus on the performance of books, and in particular, textbooks, or as Bruno Latour calls them, 'immutable mobiles'. I argue that textbooks bring four attributes to their performance: they travel easily over distance, thereby bringing their message to a geographically diffuse audience; they allow for 'an optical and semiotic homogeneity', that is, they take quite different pieces of the world, and bring them together, manipulating them and controlling them, on the same page; they represent an obligatory passage point in the sense that once they are accepted as the standard summary of a field they are necessarily acknowledged by successors; and finally, their effectiveness is in part a consequence of their rhetoric-defined as the ability to draw together and integrate within the text a wide range of sources and authors. These arguments about the performance of textbooks are illustrated by two case studies. The first is George G Chisholm's Handbook of Commercial Geography, published in 1889, which helps launch economic geography as an academic discipline within Anglo-America. The second is Peter Haggett's Locational Analysis in Human Geography, published in 1965, which in many ways codifies the quantitative and theoretical revolution that first emerged in the United States in the late 1950s.
