Offering Free Books on Your Website Our default is to offer books and stories for free on the major sellers, but you can also offer the files (.mobi for Kindle, .epub for other readers, and PDFs for just about anything) for download on your website. We also use them as an enticement to join our mailing list. If people join the Realm & Sands mailing list, they can choose any of our $4.99-or-less books as a thank-you.
