The dots graph is based on which emotions, people, and words appeared most in the novel, as a way to navigate and analyse Werther's emotions. All of his letters were run through a word counter in order to get the exact number of times that each word appeared in the text. The dots' size is relative to how often the word appears in his letters.
The dots reveal the most important themes throughout the novel, and also to try and make sense of Werther’s sometimes confusing emotions. It visualises what, and whom, Werther writes about the most and can thereby help the reader to understand his letters.
The dots can be used as a way of navigating Werther’s emotions. In the timeline view, when the reader hovers over a dot it shows the word. When the reader then clicks on a dot, that word is highlighted throughout the whole timeline of his letters. This way you are able to track and try to understand Werther’s emotions and how they eventually lead to his suicide. Sometimes a word also contains it’s opposite meaning within the context of the letters. For example, when we see the word happy or happiness this is often because Werther is comparing his sadness to others’ happiness.