Retargeting, also known as remarketing, is a powerful form of online advertising that focuses on reaching users who have previously interacted with your website or app. When a user visits your site and then leaves without completing a desired action, such as making a purchase or filling out a form, retargeting campaigns display ads to them as they browse other websites or social media platforms. The goal is to re-engage these potential customers and encourage them to return to your site and convert. This strategy is highly effective because it targets an audience that has already shown interest in your brand, leading to higher click-through rates and conversion rates compared to general advertising campaigns.