The document discusses various linking words used to connect ideas in writing. It provides examples of words used to give examples (e.g. for example, for instance), add information (e.g. and, also, too), summarize (e.g. in summary, to conclude), sequence ideas (e.g. firstly, secondly), give reasons (e.g. because, since), show results (e.g. therefore, consequently), and contrast ideas (e.g. but, however, although). The document explains how each group of words is used and provides examples of their usage in sentences.