diff --git a/_quarto.yml b/_quarto.yml
index 705c228..d8f02ac 100644
--- a/_quarto.yml
+++ b/_quarto.yml
@@ -20,6 +20,8 @@ book:
     you'll also learn how to manage cognitive resources to facilitate
     discoveries when wrangling, visualising, and exploring data.
 
+  reader-mode: true
+
   page-footer:
     left: |
       R for Data Science (2e) was written by Hadley Wickham, Mine