To make a custom thumbnail for YouTube, you can use editing tools that are likely already available on your PC or Mac computer.
You can't create a custom thumbnail on the YouTube website itself, but you can select from three pre-made options once your video has been processed.
Visit Business Insider's homepage for more stories.
Your YouTube video's thumbnail is like the cover of a book — while you shouldn't judge the contents by it, people do anyway. That's why the thumbnail should represent...
Read this story at Business Insider