eBook Design Options

There are two main types of ebooks: standard (re-flowable) and fixed-layout. The requirements of each ebook project determine which type is best suited.

Standard (Re-Flowable) eBooks

This is the most common, widely supported ebook standard. It is best for text-only books, or ones with few illustrations. Novels and many non-fiction titles, such as reference works and biographies, are usually created as standard ebooks.

Standard ebooks come in two main formats:

  • EPUB – the standard ebook format used by Apple, Kobo, Google and others.

  • MOBI – the proprietary format used by Amazon for the Kindle.

Standard ebooks can include images, tables, lists, and a varying degree of control over typefaces. However, text and ‘page’ size is controlled by the reader device or application. Device settings for text size, background color and more can also be overridden by the user, so it’s possible for the layout to change.

Re-Flowable Content and the Viewport

In a standard ebook, content re-flows to fit the display size. The reader device or application acts as a viewport, or window, onto this content. In the following example, you can see how it isn’t possible to use a two-column layout because there is no way to reliably set the breakpoint. We cannot anticipate where one column should end and another begin because the viewport is out of our control. There are no exact ‘page’ sizes. If we need this level of control, we need to look at fixed-layout ebooks.

Fixed-Layout eBooks

Fixed-layout ebooks allow for more complex page layouts where absolute control over element placement is required. Children’s titles, recipe books, and illustrated textbooks are often created as fixed-layout ebooks.

Fixed layout ebooks give us more control over image placement, typography, text columns and more, although users can still change device orientation, zoom in, or make adjustments to text size.

Fixed-layout ebooks aren’t as well supported as standard ones, so publication options are more limited:

  • EPUB 3 – the latest version of the EPUB standard is supported by Apple, Kobo, Google and some others.

  • KF8 – the latest format used by Amazon for the Kindle. Only newer Kindle devices such as the Paperwhite or Fire models support this. (Kindle ebooks are usually a combination of the older MOBI format, and newer KF8 format, packaged as a single file. This means older devices receive an ebook they are capable of displaying, but extra time may be required to create this.)

Fixed-layout ebooks are generally created for the iBooks app on the iPad, the Kindle Fire and other new models, some Kobo devices, and some Android devices.

Please note that support for fixed-layout ebooks on the Kindle isn’t particularly good. Different Kindle models have different levels of support, and the official guidelines from Amazon are rather confusing.

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