Digital Design Theory: Readings from the Field is a curated selection of texts from the last five decades of print and interactive design. Perhaps compiled in hopes of underscoring the ‘missing links’ between the two seemingly distinct disciplines, editor Helen Armstrong looks to the origins of computational design to make sense of our post-desktop publishing present. Organizing its constituent texts within three epochs of digital cultures (in which ‘the digital’ is nascent, experiences growing pains, and the congeals into a material unto itself) Digital Design Theory presents thoughts from key voices at key moments in their careers: Karl Gerstner discusses the roots of computational art in 1964; Muriel Cooper anticipates the convergence of media and mediums in 1989; Paola Antonelli describes the ‘new normal’ of interactivity and expanding territory (as schematized in her influential exhibition Design and the Elastic Mind) in 2008 – these are the kind of historical vectors that run through the book’s chronology.