Typically, institutions work with Lumen to make sure good PDFs are generated for their courses, and then load those export files in their LMS for delivery to students and other users, providing directions like those below.
FYI: Exports for Amazon Kindle
Currently, exports in Amazon Kindle's native MOBI format do not include citations and/or images, so we recommend an alternative path for Kindle use via PDF as in the directions below.
Example Directions for Export Distribution
PDF Textbook [link to PDF generated for specific course]
Download this textbook in Adobe Acrobat PDF format for offline use or printing.