"Technological evolution has rewritten the books on media campaigns many times. However, some things have remained the same. First, media campaigns must come from multiple sources. They must employ printed materials, radio and television public service announcements, and internet technologies, such as social media. Materials must communicate universally and effectively. This means strong imagery, high contrast, and powerful type without being text laden. Still, media campaigns are only one element of a movement to change behavioral norms, especially with an issue so complex as inner-city violence. They must work in conjunction with outreach programs and have community, local, state, and national support from government agencies. More importantly, the message must be consistent and persistent. Behavioral change can happen over time with repeated conditioning brought about by activism." (Conclusion, page 21)