This document discusses different types of mapping that can be used to visualize information structures in writing. It describes mind maps, which link ideas through associations without representing information structure. It also describes Information Structure Maps (ISmaps), Concept Maps (Cmaps), and Rhetorical Structure Theory (RST) mapping, which aim to represent the underlying rhetorical, argument, and information structures in a text. The document suggests that these mapping techniques can help readers understand how ideas are organized and related in a text.