In Chapter 8, Infrastructure for Navigating Interdisciplinary Debates, Robert Horn describes his work on crafting maps of “great debates” in science, in order to clarify the key claims and arguments in play. Using examples such as the Turing Debate on machine intelligence, genetically modified food, and the mind-body problem in consciousness research, Horn describes the information design challenges that they have faced in order to reify the structure of complex debates clearly both in visual terms, and intellectually, at an appropriate level of detail. Another aspect of interest in this work is the question of large scale mapping on different media. The early work was done using large paper posters to manage the size of the maps. More recent work has started to work in web interfaces, which impose new constraints, as well as opening new possibilities for managing complexity.