diff --git a/12.temporary_ins/magnetostatics-magnetic-media/overview/cheatsheet.en.md b/12.temporary_ins/magnetostatics-magnetic-media/overview/cheatsheet.en.md
new file mode 100644
index 000000000..4980bcf41
--- /dev/null
+++ b/12.temporary_ins/magnetostatics-magnetic-media/overview/cheatsheet.en.md
@@ -0,0 +1,17 @@
+---
+title: Magnetic media in a stationary magnetic field
+published: true
+routable: true
+visible: false
+lessons:
+ - slug: conductor-dielectric-magnetic-media-in-static-fields
+ order: 2
+---
+
+!!!! *LESSON UNDER CONSTRUCTION :*
+!!!! Published but invisible: does not appear in the tree structure of the m3p2.com site. This course is *under construction*, it is *not approved by the pedagogical team* at this stage.
+!!!! Working document intended only for the pedagogical team.
+
+
+
+### Magnetic media in a stationary magnetic field
\ No newline at end of file