The document describes an A/B test of email subject lines conducted by Melina Miller. Miller sent an email to 204 contacts split evenly between two groups. One group received an email with the subject line "A Digital-First Approach to Brand Marketing" and the other received "Expert Insights: Why A Digital-First Approach to Brand Marketing Is Essential". The open rates for each email were similar at around 48%, while the click-through rates were 25% for the first subject line and 28% for the second. A chi-square test found the differences in click-through rates were not significant. Therefore, either subject line could effectively be used going forward.