I’d like to imagine that a reader picking up this book might be able to flip to the chapter that addresses a particular medium that interests them—e.g. graphics, industrial design, architecture, film and spectacle—and be surprised by the impact that IBM and its designers had upon that medium. (And then go to the check-out counter, then to their favorite reading spot, and then reopen the book to page one!) The book is full of a particular kind of uncanny history: nearly invisible things that seem familiar, natural, and inevitable are suddenly revealed to have a strange and unsettling history.A good example of this is in the chapter on the design of computers: “Computer Architectures.” There I show that, until Eliot Noyes and Edgar Kaufmann Jr. had spent years thinking through how a computer ought to be designed as a material object in architectural space, there was quite literally no understanding of what we today call a computer interface.Through a process of close collaboration with IBM’s various engineers, and a series of trials and errors, Noyes and Kaufmann eventually arrived at a specifically architectural understanding of the relationship between human beings and computers. They called it the “parlor and coal cellar” principle. The space that the computer operator inhabited, the parlor, was to be a space designed for the comfort and safety of the human being; the messy, even poisonous, space that the CPU itself inhabited, was to be relegated to the coal cellar, an essential functional component kept out of sight and touch from the operator. The hinge between these two spaces was the computer interface, which carefully and deliberately controlled the interaction between human being and machine.This is what an interface is, a machine for bringing people and machines together into a productive apparatus, which is known as the “man-machine system.” Interfaces are the hyphen.I have several hopes for this book, but the most dear is that it will contribute to a growing and increasingly sophisticated interdisciplinary discourse on the significance of technics in contemporary life. Art and architectural history have much to contribute to this discourse, since their fundamental sphere of inquiry—the visual and the spatial realms—are wholly constitutive of the mass media society in which we live.I also hope that this book succeeds in another area, which is to prompt readers to think about the single most dominant form of social organization today—the corporation—in a nuanced way.The corporation is a phenomenon that has long eluded serious thought. Art history can provide a concrete history of the otherwise abstract corporation by revealing and critiquing the real and material effects of the corporation in the world, and help us to avoid the vicious circular reasoning that so often appears as soon as one slips into abstraction.As I write in the conclusion, “Virtual Paradoxes”: “It is my hope that an expanding critical art history of the computerization of art, design, and architecture—one that is the product of multiple historians and theorists in dialogue, one that sheds light on the ideologies inherent to the vague metaphorics of systems, networks, and interfaces even as it seeks to describe these phenomena—may help to avoid our being held hostage in the whimsical oxymoron and epistemological trap of ‘virtual reality.’”