diff --git a/external_libs/README.md b/external_libs/README.md
new file mode 100644
index 000000000..5727409ce
--- /dev/null
+++ b/external_libs/README.md
@@ -0,0 +1,9 @@
+# External libraries
+
+This folder holds the dependencies on external libraries.
+
+For further informations, see:
+
+- [Scotch](https://gforge.inria.fr/projects/scotch/)
+- [LibJPEG](http://www.ijg.org/)
+