Hi VictoriaEllis, it’s great you’re digging into conscientiousness for AP Psychology. You might find the chapter on the Big Five Personality Traits in “Psychology” by David G. Myers especially clear and student-friendly — it covers conscientiousness as being about self-discipline, organization, and goal-directed behavior, which ties closely into personality study. Another helpful resource is the CrashCourse Psychology series on YouTube; their episode on personality traits breaks down conscientiousness in a straightforward way that aligns well with the AP curriculum.