This document summarizes several case studies showing the results of public relations campaigns for various clients. It describes increases in brand recognition, media coverage, and business metrics like number of patrons or passengers over time frames ranging from 6 months to 18 months as a result of the PR efforts. Campaigns included activities like trade show booths, media placements, social media growth, and commentary that led to returns of 10-11 times the initial investment compared to traditional advertising.