How to Preview a Post

[juno16]

It's probably right in front of me, but I cannot find a button to preview a post. 

I am a deep sky imager and would like to preview a post/image or see if an inserted link (such as astrobin) shows up as a thumbnail or image in my post.

Any advice or help is appreciated!

Thanks, Jim

[Budgie1]

The editor is normally a What You See Is What You Get style but there is a Preview button at the top of the text window, last on the right.