A pollster is a person or organization that conducts surveys to find out what groups of people think about particular topics. Before an election, pollsters might call thousands of voters to ask who they plan to vote for, then use that information to predict the outcome. Pollsters also measure public opinion on issues like new laws, school policies, or consumer preferences.

The work requires careful method: pollsters must survey enough people to get accurate results, ask questions in neutral ways that don't influence answers, and make sure they're reaching a representative sample of the population they're studying. A pollster measuring student opinion about a school uniform policy wouldn't just ask students in one classroom; they'd need to survey students across all grades to get reliable results.

Pollsters don't just count responses; they analyze patterns and trends. They might notice that opinions differ by age group, location, or other factors. News organizations, political campaigns, businesses, and researchers all rely on pollsters to understand what people think. While polls can be remarkably accurate, they're not perfect: pollsters sometimes get results wrong if their sample isn't representative or if people change their minds after being surveyed.