The document describes the five main personality traits known as the "Big Five": Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism. For each trait it provides a brief definition and the percentages of people who score high or low on that trait. It then provides brief descriptions of common personality types like sales people, account managers, client marketers, planners, and creatives in terms of how they might score on the Big Five traits.