Here's an example of a summary paragraph:
How to Write an Essay Introduction
The easiest way to do this is to walk over to the library or bookstore and spend an hour reading the introductory pages of a few books, taking home the one’s that leave you with the strongest impression.
How to Write an Essay (with Pictures) - wikiHow
Before I start a new book, I like to read through the introduction, prologue, or first chapter to get an overview of the author’s thesis. What are they trying to say? What will I be convinced of when I finish? Is there a specific theme I should pay attention to throughout the book? And most importantly: what is the author’s writing style like?
How to Write a Research Essay in any Discipline
7. The summary paragraph summarizes your essay and is often a reverse of the introductory paragraph. Begin the summary paragraph by quickly restating the principal ideas of your body paragraphs.