The document introduces the 7C model for building effective personas. The 7Cs are: core values, category needs, category behavior, company value, channel usage, communication, and character. Each C is described in its own section with examples of the types of research needed. An overview of the 7Cs is then provided. The document concludes with next steps for implementing personas, including developing persona stories, communicating them to inspire the organization, and training teams to work with personas.