Charles B. Travis’s Abstract Machine: Humanities GIS takes its place among a number of recent book-length studies or themed collections that bring focus to the potential for Geographical Information Systems (or GIS) as a productive tool for geocritical work in the humanities. Indiana University Press’s “Spatial Humanities” series has, since 2010, led the charge by publishing (so far) eight books that concentrate on the application of GIS to humanities disciplines such as history, film studies, and literary studies. Literary studies is, in particular, a key emerging site for this kind of “spatial humanities” or “digital geohumanities”-type research, as evidenced by the publication of a cluster of books over the past two years, including Cooper et al.’s 2016 edited collection, Literary Mapping in the Digital Age; Stadler et al.’s 2016 Imagined Landscapes: Geovisualizing Australian Spatial Narratives (a book I co-authored); and Travis’s Abstract Machine, published in 2015...