diff --git a/itertools.md b/itertools.md
new file mode 100644
index 000000000..44c4d0fb0
--- /dev/null
+++ b/itertools.md
@@ -0,0 +1,4 @@
+# Itertools
+
+- A great [[python]] [[module]].
+
diff --git a/journal/2021-01-24.md b/journal/2021-01-24.md
index 306d5ebff..8faa20109 100644
--- a/journal/2021-01-24.md
+++ b/journal/2021-01-24.md
@@ -28,6 +28,7 @@
 - [[isoperimetric inequality]]
 - [[social coop]]
   - [[socialcoop]]
+- [[itertools]]
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
 [push]: ../push "Push"