The document discusses how Suncor Energy, a Canadian energy company, uses personas to better understand and engage their diverse employee base. It explains that personas are fictional archetypes based on real employee attributes that represent major audience segments. By developing personas through research and interviews, Suncor gained insights into different employee goals, preferences and information habits. This allows them to test communications strategies and ensure relevance for each segment. The document provides examples of both abbreviated and detailed personas, and discusses how Suncor uses personas to guide employee initiatives and communications tools.