The copyright page of your self-published book should include the following information:

1. Copyright notice: This should include the symbol ©, followed by the year of publication, and the name of the copyright owner. For example, "© 2023 Jane Doe"
2. Edition information: If the book is a second or subsequent edition, indicate this information on the copyright page. For example, "Second edition, 2023"
3. ISBN: If your book has an International Standard Book Number (ISBN), include it on the copyright page.
4. Publisher information: If you have established a publishing company or have a business name that you use to self-publish, include that information on the copyright page.
5. Disclaimer: You may want to include a disclaimer on the copyright page to protect yourself from liability. For example, "The views expressed in this book are those of the author and do not necessarily represent the views of the publisher."
6. Credits: If there are people who contributed to the creation of the book, such as editors or designers, you may want to include their names and roles on the copyright page.
7. Printing information: If the book is printed by a print-on-demand service or a local printer, include this information on the copyright page.
8. Legal notices: If your book includes any legal notices, such as a notice about the use of copyrighted material or a disclaimer about the accuracy of information, include them on the copyright page.

Remember, the copyright page is an important legal document that protects your rights as the author of the book. Make sure you include all the necessary information to ensure that your book is protected and that you are giving proper credit to those who helped you along the way.

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