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Mr king To explore the best tactics for writing YouTube descriptions, I spoke with Eric Peters, a Senior Growth Product Manager on HubSpot's Academy team. He said, "[YouTube descriptions] are one of the primary ways YouTube knows what your video is about. Include links, additional resources, links to other videos and playlists, etc. Make sure the description box is easy to read."

Peters explained that your YouTube video description and closed captioning should incorporate keywords into your description. It also helps with accessibility for people who are deaf or hard-of-hearing. Hence, adding closed captioning to your videos is an absolute must for accessibility.

For instance, take a look at one of HubSpot Marketing's YouTube video descriptions: