Art directors, storyboard artists and graphic designers, as well as other kinds of visual artists, use the term "thumbnail sketch" to describe a small drawing on paper (usually part of a group) used to explore multiple ideas quickly.

I'm a bit confused by the context of this question but yes,

Explanation:

thumbnail sketch is just how artists jot down important things they want to save for later, for example, let's say an artist is in a subway and sees an interesting person, they will need a reference for later to look back at so they sketch the desired person to have as a crutch for a later, more detailed drawing. hope this helps!

-cherry

betcha you're ugly

Explanation: