: A digital, clickable ToC is essential for navigation.
: The content should be designed to automatically adjust text size and formatting to fit various screen sizes.
: Optimize any graphics to ensure they meet standard specifications and display correctly in both portrait and landscape modes. How to Develop and Export the File
A professional EPUB must contain specific structural elements and metadata to be compatible with e-readers like Kindle or Apple Books:
: Ensure the file includes the Title, Author, Language, and a unique Identifier (like an ISBN).
Depending on your skill level, you can use several tools to create or edit this content: EBook::EPUB - MetaCPAN