Wiktionary
at a glance
prep.phr. (context idiomatic English) Upon cursory examination; an abbreviated review.
Wikipedia
At a Glance
At a Glance is a 2008 Italian thriller film written, directed and starred by Sergio Rubini. For his performance Riccardo Scamarcio won the 2008 Flaiano Prize for best actor.
Usage examples of "at a glance".
Before them were piles of letters and other papers, which he knew at a glance related to himself.
Still he perceived at a glance that the parson would prove serviceable, and he therefore gave him a hearty welcome.
You could see at a glance that all the stars shone with the same steady, unwavering light.
Faces selected on the basis of her mental reaction to them, the instinctive hostility of that deeper brain that could read character at a glance or word.