Fix #430
diff --git a/docs/awesome_table_in_pdf.Rmd b/docs/awesome_table_in_pdf.Rmd
index f1db135..fc1147e 100644
--- a/docs/awesome_table_in_pdf.Rmd
+++ b/docs/awesome_table_in_pdf.Rmd
@@ -36,6 +36,8 @@
 \end{wrapfigure}
 The goal of `kableExtra` is to help you build common complex tables and manipulate table styles. It imports the pipe `%>%` symbol from `magrittr` and verbalizes all the functions, so basically you can add "layers" to a kable output in a way that is similar with `ggplot2` and `plotly`.
 
+For users who are not very familiar with the pipe operator `%>%` in R, it is the R version of the [fluent interface](https://en.wikipedia.org/wiki/Fluent_interface). The ides is to pass the result along the chain for a more literal coding experience. Basically when we say `A %>% B`, technically it means sending the results of A to B as B's first argument.
+
 To learn how to generate complex tables in HTML, please visit [http://haozhu233.github.io/kableExtra/awesome_table_in_html.html](http://haozhu233.github.io/kableExtra/awesome_table_in_html.html).
 
 # Installation