Markdown is an incredibly simple authoring language that most people can master the basics in 5 minutes. R Markdown is a document format based on the R language and Markdown to intermingle computing with narratives in the same document. With this simple format, you can actually do a lot of things. For example, you can generate reports dynamically (no need to cut-and-paste any results because all results can be dynamically generated from R), write papers and books, create websites, and make presentations. In this talk, I'll give brief introductions to the R packages rmarkdown, bookdown for authoring books (https://bookdown.org), blogdown for creating websites (https://github.com/rstudio/blogdown), rticles for writing journal papers (https://github.com/rstudio/rticles), xaringan for making slides (https://github.com/yihui/xaringan), flexdashboard for generating dashboards (https://github.com/rstudio/flexdashboard), learnr for tutorials (https://github.com/rstudio/learnr) and the integration between Shiny and R Markdown. To make the best use of your time during the presentation, I recommend you to take a look at the rmarkdown website in advance: http://rmarkdown.rstudio.com.