According to Google, the character limit for a YouTube video description is 1,000 characters, so we have a great opportunity to full share the story of the video. Keep in mind the description should be written to be keyword rich and also be clear and concise. With that said, remember that the viewer came to watch the video not read a book.
YouTube only displays around the first 100 characters, so make sure to front-load the description with the most important information and key words.
You can also include a transcript of the video which helps if the viewer is watching the video without volume.
