Blip
Brevity
Skittish
short
brief grief
"Hiatus" is one of my favorites.
Pithy, terse.
An "overview" is A survey or a broad, comprehensive view of something. A summary or a review of something. And the word "brief" means short. Thus a "brief overview" is a short (in length) summary of something.
glance
brief
The correct spelling is "concise." It means something that is brief and to the point.
I think you mean "succinctly", which means "concisely", or brief and clear.