Your personal avatar on YouTube
Yes, you should have a personal avatar, in other words: a fictive ideal viewer. This is not the same as your target audience.
Your personal avatar on YouTube
Niching Down on Your YouTube Channel
Three tools you need to get your YouTube SEO right
Why is the Thumbnail and Title so important for YouTube SEO?
YouTube SEO - MAIN focus first year on YouTube
Top 3 YouTube SEO metrics you need to think about as a YouTube vlogger or content creator?
Which figures do YouTube creators need to watch after publishing their video?
Yellow caption in Thumbnail - Should YOU do this for your YouTube videos?