diff --git a/_bookdown.yml b/_bookdown.yml
index 2b5209c..c0d7c66 100644
--- a/_bookdown.yml
+++ b/_bookdown.yml
@@ -31,7 +31,6 @@ rmd_files: [
 
   "communicate.Rmd",
   "reproducible-research.Rmd",
-  "dynamic-documents.Rmd",
   "communicate-plots.Rmd",
 ]
 
diff --git a/dynamic-documents.Rmd b/dynamic-documents.Rmd
deleted file mode 100644
index 4236ccc..0000000
--- a/dynamic-documents.Rmd
+++ /dev/null
@@ -1,9 +0,0 @@
-# Dynamic Documents with R Markdown
-
-## Output formats
-## Slide syntax
-## Customizing output
-## Tables
-## Citations and bibliographies
-## Interactive documents
-## Templates
diff --git a/clustering.Rmd b/extra/clustering.Rmd
similarity index 100%
rename from clustering.Rmd
rename to extra/clustering.Rmd
diff --git a/databases.Rmd b/extra/databases.Rmd
similarity index 100%
rename from databases.Rmd
rename to extra/databases.Rmd
diff --git a/heights.Rmd b/extra/heights.Rmd
similarity index 100%
rename from heights.Rmd
rename to extra/heights.Rmd
diff --git a/robust-code.Rmd b/extra/robust-code.Rmd
similarity index 100%
rename from robust-code.Rmd
rename to extra/robust-code.Rmd
diff --git a/shiny.Rmd b/shiny.Rmd
deleted file mode 100644
index 578d0bd..0000000
--- a/shiny.Rmd
+++ /dev/null
@@ -1 +0,0 @@
-# Shiny