We want you to be able to enjoy this book completely free of charge so we’ve licensed it according to the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License (https://creativecommons.org/licenses/by-nc/4.0/).
If you teach R, feel free to use some or all of the content in this book to help support your own students. The only thing we ask is that you acknowledge the original source and authors. If you find this book useful or have any comments or suggestions we would love to hear from you (you’ll find us lurking on Twitter and GitHub).
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