A general view or outline — an overall picture or survey of something, often used when taking a broad look before details.
報告書の冒頭で市場の概観を示した。
At the beginning of the report, we presented an overview of the market.
まず全体を概観してから、個々の問題に取り組もう。
First let's survey the whole picture, then address each issue.
この章では日本の経済史を概観する。
This chapter provides an outline of Japan's economic history.