This book examines methods for interacting with people who dismiss scientific findings in favor of ideological beliefs, including those who believe the Earth is flat, deny climate change, or oppose vaccinations. Drawing from personal encounters and scholarly studies, McIntyre identifies recurring patterns in science denial and suggests practical approaches for effective communication with individuals holding misconceptions. The author stresses the significance of maintaining a composed and considerate dialogue when attempting to persuade science deniers, and contends that addressing science denial is vital for safeguarding public health and safety.