* Foreword: This is a common term for an introduction written by someone other than the author, often a prominent figure in the field.
* Preface: This is written by the author themselves, often offering insights into the book's genesis, purpose, and intended audience.
* Introduction: This is a general term for a beginning section that sets the stage for the book's content.
* Prologue: This is a short introductory section that often sets the scene or introduces key characters.
* Author's Note: This is a brief section written by the author, usually found at the beginning or end of the book, providing additional information.
The most appropriate term will depend on the length, content, and purpose of the introductory section.
For example, if the eminent personality is writing a brief introduction that highlights the author's work and its significance, it would be considered a foreword. If the author is writing a more detailed explanation of their book's origins and goals, it would be considered a preface.
Ultimately, the specific term used will be determined by the author or publisher.