What Is Art History Made Of” is such an important essay. Frost both recognizes the materiality of art historical media and seeks to broaden it. The Digital Humanities are already expanding the range of methods and materials available to art history, but Frost describes a broader self-critical programme for such experiments to pursue. This is a superset of a “critical digital humanities” that is much more than the call to order that label usually covers, bringing in Maker Culture and art practice as well (Art & Language are a useful precedent here). It is a self critical expansion of art history into its own objects that promises increased expressive range and communicative bandwidth for the field.