Testimonial advertising is a popular approach that involves using endorsements from satisfied customers to promote products or services. The most effective testimonial ads are tailored to their target audience and can take various forms, such as text testimonials, image testimonials, video testimonials, user-generated content (UGC) screenshots and videos, and more. Brands can use social proof like reviews from well-known publications to build trust with their audience. To get a sense of how brands are approaching testimonial advertising today, it's essential to scour the web for examples that showcase different approaches, such as using influencers, creating engaging video ads, or leveraging UGC. By studying these examples and understanding what works best for each brand, businesses can create effective testimonial ad campaigns that resonate with their target audience.