
For example, YouTube's current recommended thumbnail size is 1280 pixels by 720 pixels. Many sites will give you a range of size possibilities, so try to choose the largest possible size within that range, so your image will look its best. Each platform has different size requirements and if you don't hit those, your thumbnail may end up looking stretched or squeezed or improperly cropped. Make them meaningful, powerful keywords that will grab attention.


The colors should contrast with the main image so that it's easily readable and you shouldn't have too many words. Again, because people are looking at it on many different sizes of screens, be sure to make the text clear and bold. You'll also often want to add text to your thumbnail. There's research that shows that thumbnails are most effective when they're higher contrast and a bit oversaturated and over sharpened. Once you do that, I recommend color correcting it a bit, so that the image really pops. Photos with faces are usually the most popular, especially on YouTube, because people are emotionally drawn to other people. You can stage a photo shoot, or you can just take some photos with your phone during the video shoot itself. It's often better to take a separate photo with more focus and deliberation. Many times however, using a frame from your video isn't the most effective image in terms of impacting clarity. Thumbnails live on all types of devices, so wide shots, or images with too much going on, will not resonate, especially on smaller mobile screens. If you choose a frame from your video itself, make sure the image is clear, not complex, and choose a close-up shot, rather than a wide shot. Identify attention-grabbing images that will speak to your target audience, give a good idea of what the video is about in terms of content and tone, and appropriately accompany your video headline. The most important task is choosing the best representative image. So create you own, and follow a few best practices to make sure you're making the best video book cover you can. In fact, 90% of the most successful YouTube videos have a custom thumbnail, which can increase audience engagement by more than 150%. This probably means the automatically generated thumbnail your video hosting site chooses by default is not going to be the best image to hook and inform your audience. That's a lot for a thumbnail sized image to do. And unlike book covers tucked in a shelf, thumbnails are displayed out in front for everyone to see, alongside hundreds of others, so they've got to stand out from the rest. Their job is to hook interest, inform your audience what the video is about, and give a sense of the style and tone of the video.

Video thumbnails are the book cover of your video.
