The phrase "at a glance" is often used to describe a quick and cursory observation of something. However, there are other synonyms that can be used to express the same meaning. Words like "briefly", "fleetingly", "momentarily", "hastily", or "quickly" can be used to describe a brief look. Words like "superficially", "cursorily", "lightly", or "perfunctorily" might be used to describe the level of detail involved. Depending on the context, words like "summary", "overview", "synopsis", or "condensed version" could also be used. The English language is vast, and there are always ways to express a thought or idea using different words.