What Is an Ebook?

What is an ebook? It isn’t just your book in electronic format. An ebook is your book converted into a format that displays on an ereader or electronic device, such as a smartphone or tablet. Unlike print books or PDFs, whose layout and style is fixed, ebooks need to be flexible.

With an ereader, people can change the font, font size, line spacing, and even margins of most books. Because readers can manipulate these aspects, ebooks have to be specifically formatted so they adjust to whatever setting the reader wants—while still looking good. For that reason, it’s impossible to have page numbers—the numbers would have to change for every person! Instead of page numbers, ebooks use locations.

In epublishing, there are two ebook file types: MOBI and EPUB.

MOBI and EPUB

All Amazon Kindle products and apps only read MOBI files, while iPad, Nook, and most other ereaders recognize EPUB files. When your book is formatted into MOBI and EPUB files, the content stays the same, but each file is optimized for its respective devices.

How Mill City Press Helps

Mill City Press offers ebook formatting and will format your book into MOBI and device-optimized EPUB files for your review and approval.

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