This is a relatively short, but very informative book on using the bookdown package in R. I plan to use this package to produce reproducible assessment reports for General Education. I may also use it to produce more complicated manuscripts. The basics are well-covered. I will need more instruction (and specific examples) in order to really learn the more advanced publication options. Fortunately, I'm pretty comfortable in HTML and LaTeX. I could have read this for free online. However, I wanted to provide some financially support to Dr. Xie's important work by getting a print copy (and I can never have enough books dealing with R).