The concept of world and the practice of world creation have been with us since antiquity, but they are now achieving unequalled prominence. In this timely anthology of subcreation studies, an international roster of contributors come together to examine the rise and structure of worlds, the practice of world-building, and the audience's reception of imaginary worlds. Including essays written by world-builders A.K. Dewdney and Alex McDowell and offering critical analyses of popular worlds such as those of Oz, The Lord of the Rings, Star Trek, Star Wars, Battlestar Galactica, and Minecraft, Revisiting Imaginary Worlds provides readers with a broad and interdisciplinary overview of the issues and concepts involved in imaginary worlds across media platforms.