Lindsey Caplan is an expert in group influence—the dynamics that determine whether a room shifts or stays the same. Through her firm, The Gathering Effect, she advises senior leaders on how to design high-stakes moments—town halls, offsites, launches, and change initiatives—that shape how organizations think, decide, and act. A screenwriter turned organizational psychologist, she blends storytelling craft with behavioral science to help groups move from passive understanding to shared ownership. Her forthcoming book, Moved, explores the art and science of influencing many at once.