This document discusses how tone of voice in branding is measured and classified. It describes a model that analyzes over 1.87 million words from 230 brands across 30 sectors to identify typical tone of voice personalities. Eight common patterns are identified: The Sheep, The Strutters, Experts, Leaders, Grey Men, Institutions, Saviours, and The Triers. The document promotes a tone of voice measurement service that helps brands consistently deliver their values through language.