Digital advertising offers a variety of channels and formats to reach your audience, such as social media, search engines, websites, mobile apps, video, email, and more. However, not all of them are equally effective for every client, industry, or campaign. You need to research and analyze your client's target market, their competitors, their budget, and their current online presence, and then recommend the best channels and formats for their goals and metrics. For example, if your client wants to increase brand awareness among a young and tech-savvy audience, you might suggest using video ads on YouTube or Instagram Stories, rather than banner ads on websites. If your client wants to generate leads for a B2B service, you might suggest using search ads on Google or LinkedIn, rather than email marketing. By choosing the right channels and formats, you will be able to show your client how digital advertising can help them reach and connect with their ideal customers, and optimize their results and ROI.