They are useful for any book that requires a fixed layout, especially in print. The PDF was a file type created by Adobe, and has gained widespread use ever since. However, they are better served in constructing your print books, and not as eBooks. PDFs are another common type of book file. Print, however, uses a different file format… PDF (.pdf)

Thankfully, programs like Atticus will automatically generate an EPUB file for you when you're ready to format and publish your book. Since almost all eBook vendors use EPUB files these days, you should default to the EPUB in almost every instance where you would need an eBook. EPUBs can now be used on Amazon, and are now the recommended ebook type there. Thankfully, you can have both reflowable and fixed layout books with EPUB.ĮPUB book files are based on coding standards such as XHTML, XML, CSS, and compatible with HTML5, MathML, JavaScript, and vector graphics like the popular SVG file type.įormerly, EPUBs were not published on Amazon, requiring the MOBI instead. These layouts are common in children’s books, image/infographic-heavy non-fiction books, and comic books. EPUBs are versatile enough that they can be programmed to have fixed layouts if needed.Ī fixed layout usually has designs that are dependent on the layout of the text and images. However, this doesn’t have to be the case. Most EPUB files are reflowable, which means that the text and images will shift to fit the screen size of the device.

It plays on virtually all devices, including: An EPUB file is the most widely used, and best supported format for an eBook.

Mobi file type