This book explores the role of cognition in the field of human-computer interaction (HCI) assessing how the field has developed over the past thirty years and discusses where the field is heading, as we begin to live in increasingly interconnected digital environments. Taking a broad chronological view, the author discusses cognition in relation to areas like make-believe, and appropriation, and places these more recent concepts in the context of traditional thinking about the psychology of HCI. HCI Redux will appeal to undergraduate and postgraduate students and researchers in psychology, the cognitive sciences and HCI. It will also be of interest to all readers with a curiosity about our everyday use of technology.