This document discusses discourse markers, which are words or phrases used in writing and speech to connect sentences and guide the reader through the text. It explains that discourse markers help signal how ideas are related and make the text easier to follow. The document provides several lists and tables of common discourse markers and their functions. It emphasizes that authors should use discourse markers deliberately to aid comprehension, rather than arbitrarily inserting them. Readers are advised to study the provided discourse marker resources and refer to them when writing in order to develop a clear and varied style.