The document provides case studies and information on four social campaigns: 1) Save the Children aimed to raise awareness of starving children and stop food waste through provocative bin messaging. It has helped millions of children since 1919. 2) The Salvation Army helps homeless people through shelters, jobs, and community ties to make the invisible visible. 3) It Stops With Me confronts racist stereotypes by highlighting common prejudiced Google searches and calls for changed views. 4) Case studies evidence long-term impact of campaigns' words and graphics in changing attitudes and helping people over many years.