A very brief history of human communication centered around choosing my font and extending into future communication possibilities.
When you include a meaningful picture in a document, you need to add a caption. If you have a number of figures, you need to allow readers to easily find them by inserting an automatically generated Table of Figures.
Writing business or academic documents often requires a Table of Contents. This video, in under 5 minutes, shows you how to autotomatically generate and update a Table of Contents in MSWord.