| 摘要 |
A method of commerce for books, including ebooks and audiobooks, in digital format. Each book is offered for sale chapter-by-chapter, alongside the option to purchase the book as a unit. The publisher or etailer divides the book with digital metadata to enable chapter-by-chapter display and commerce on the book's sales webpage. The book may or may not be a textbook. The book can be copyrighted. The sales page can be presented to a general audience without need of a special ereader or subscription. Options presented to the consumer can include temporary access as well as a permanent download. Temporary access can be provided by streaming audio or a password-protected webpage or read-only file. Unlimited temporary access may be offered as part of a pre-paid subscription. |
