"The ultimate goal of any software is to offer a great experience to its users. User interfaces and workflows must be clear, self-explanatory, and appealing. Software documentation should have a similar goal. Comprehensive diagrams that visualize ideas and concepts clearly are mandatory to do that. If you communicate solely via text (written or spoken) people will lose focus quickly and have a hard time remembering your thoughts. I am going to show how to create beautiful diagrams with the right level of detail, to communicate efficiently with other software professionals and stakeholders. "