Great thumbnails are the difference between getting engaged video views or getting skipped. This is a big part of usability in video SEO services and ranking on YouTube. Invest in finding the best frame of your video to use as a background that tells the story. Use standout, sharp designs and fonts to get a simple message across and high-quality images. Optimising video thumbnails for mobile, as well as desktop is extremely important. Get this right and you'll increase video visibility tenfold. Lastly, if you're not one for aesthetics, hire a graphic designer. Designs consistency across your channel, and playlists is an effective YouTube SEO marketing practice.