Jane Jacobs inspired change through her work in urban planning and development. In her seminal book, "The Death and Life of Great American Cities," Jacobs advocated for vibrant, mixed-use neighborhoods and criticized the reliance on automobiles in urban design. Her insights into the importance of community engagement, pedestrian-friendly spaces, and local economies have influenced modern urban planning and policies. Jacobs championed the idea that cities should prioritize the needs of their residents, leading to more sustainable and inclusive urban environments.