diff --git a/slides/chapter-03.en.md b/slides/chapter-03.en.md
index 102cdf8..03dac31 100644
--- a/slides/chapter-03.en.md
+++ b/slides/chapter-03.en.md
@@ -57,21 +57,6 @@ For example:
 </ul>
 
 
-@slide(layout=content-only)
-
-@title
-Packages
-
-@content
-``` {.lang-tex .hljs}
-\usepackage[<options>]{<package_name>}
-```
-
-* Packages provide additional commands and functionalities.
-* There are different packages for different use cases (e.&thinsp;g., mathematical formulas, lists, ...).
-* Before they can be used, they have to be included **within the preamble.**
-
-
 @slide(layout=content-only)
 
 @title