A Great R Resource

Bookdown is a free and open-source R package built on top of R Markdown to make it really easy to write books and articles/reports.

The website bookdown.org is a service to host books. It is free to publish the static output files of the books, and the author retains the copyright on the books. As the site is powered by RStudio Connect, any type of content can be hosted: Books, articles, reports etc.

Interesting R books hosted on the site and accessible for free (I just mention a few):

This site is a great and totally free resource for learning R and Data Science, the authors should be praised because the amount and the quality of content is really invaluable!