I use my Ghost blog for artwork, I currently post the image in the post itself then reupload that same image as the thumbnail so the image can show up in the post teaser/loop. Is there a more efficient way to handle this, doesn’t this way take up more space?
Is there a way for it to take the first image in the post and use that as the thumbnail? And if so, in the case that I do want to use a thumbnail image, is there a way to use that to show up in the post teaser than the image in the post? I hope I make sense. 
I believe I’ve solved it! I used {{content}} within the post teaser partial and it will show the image, so I don’t have to upload the same image as a thumbnail to show in the archive page.