Link to 1st ed

preface.qmd

@@ -43,7 +43,7 @@ However, you should be able to easily spot them as **bolded text**.
 
 ## Changes for the second edition {.unnumbered .unlisted}
 
-While the second edition does not represent a major change from the first edition, we have worked hard to improve content, to add exercises, and to update text and code to reflect changes in best practices (e.g., the book is now written in [Quarto](https://quarto.org/)).
+While the second edition does not represent a major change from the [first edition](https://openintro-ims1.netlify.app/), we have worked hard to improve content, to add exercises, and to update text and code to reflect changes in best practices (e.g., the book is now written in [Quarto](https://quarto.org/)).
 
 A brief summary of the biggest changes follows: