An overview is not meant to cover every detail but to present the general idea. Before diving into each chapter, the professor provided an overview of the book's themes.
Pro Tip 2/3
Starting Point
Use 'overview' at the beginning to introduce a broad topic before specifics. The document starts with an overview of the company's history.
Pro Tip 3/3
Verbal Summary
'Overview' can be used when summarizing verbally, it signals a brief run-through of main points. Let me give you an overview of the meeting's key outcomes.