Channel Description

What Is a Channel Description?
A Channel Description (also known as a “YouTube About Page”) is a brief outline of what type of content you publish on your channel. It appears on your Channel Page and in YouTube’s search results.

Why Is Your Channel Description Important?
Your Channel Description is a way for visitors to learn more about you and the type of videos you create. And a well-written Channel Description can also convert visitors into subscribers. Also, using keywords in your Channel Description can help your channel’s YouTube SEO.
Best Practices
Start Strong
The first 100-150 characters of your channel description is super important.
Why?
First off, YouTube shows that 100-150 character snippet next to your channel in the search results:
Also, this is the first part of your description that people will read. So you want to communicate your channel’s positioning right off the bat.