I created a content type called Videos.
In it there is a file field with a Embedded Media Field widget, and using the Media: YouTube module to post Youtube videos.
I created a block showing links to the latest 10 nodes of content type Videos.
This works fine. However now I want to create another block showing a thumbnail of the latest video and if a user clicks on it, it will take the user to the node of that video. I have played around in Views and there doesn't seem to be a way to expose the thumbnail of a video.