In addition to the main text and embedded or supplemental media, other features or content such as annotations, high-quality versions of media, supporting data, a visual walk through with the author, and peer reviews may be considered integral to the work in some cases. If so, these resources should be part of the export package so that they can be preserved alongside the publication. Special provisions may need to be made for artifacts that are hosted outside of the platform to include them in the export.

See also:
10. Identify and document the core intellectual components of a work
72. Create a video walkthrough of any complex features