The website https://bookdown.org is a service provided by RStudio, PBC to host books. It is free for you to publish the static output files of your book, and you hold the full copyright of your own books.
This service offers:
Easy publishing of an HTML version of your book, with the help of the function
bookdown::publish_book().Listing of books written using bookdown. Every book published into this hosting service will be listed on the Books page of the website with a description, a cover image and a link to the source repository. A book published online on another hosting service can also be listed on https://bookdown.org.
See more about how to publish a book and get a book listed with the right information on https://bookdown.org/home/about/.