A book summary is a short summary of the key points of the book so that the reader understands what it is about. When you are trying to write a book summary, there are three steps you should follow.
Step 1: Read chapter summaries and chapter titles.
Step 2: Create your own synopsis, which includes all main points.
Step 3: Translate your synopsis into an introduction for non-readers.
Sample of summary for Common Sense By Thomas Paine.