The table of contents and the preface are found in back book?

No, the table of contents and the preface are found at the front of a book, not the back.

* Table of Contents: This is a list of the chapters, sections, and other parts of the book, along with their page numbers. It helps readers navigate the book.

* Preface: This is an introductory section where the author often explains the book's purpose, discusses their motivations for writing it, and may provide background information on the topic.

The back of a book typically contains:

* Index: An alphabetical list of key terms and concepts mentioned in the book, with page references.

* Bibliography: A list of books, articles, and other sources that the author consulted while writing the book.

* About the Author: A brief biographical sketch of the author.