A PDF synopsis (Vision Plus, Riga 2017) by Yuri Engelhardt and Clive Richards that proposes a framework for analysing and creating diagrams as a “visual grammar,” where meaning emerges from graphic relationships between elements rather than from elements alone. It summarises how different information questions (e.g., where/when/how many/which group/what relationships) can be answered through recurring visual encoding principles such as mapping, positioning on an axis, sizing, repeating, proportional partitioning, ordering, grouping, connecting, and nesting—treating diagram-making as an editorial and semiotic process. It is relevant to my practice because it gives me a precise vocabulary to justify hierarchy, grouping, and linkage decisions in my own diagram system, strengthening how I communicate clarity and authority in information design.