diff --git a/examples/key_functions.py b/examples/key_functions.py
new file mode 100644
index 0000000000000000000000000000000000000000..b08671fa23cec9e1f25e1f7f758ce4857e053c94
--- /dev/null
+++ b/examples/key_functions.py
@@ -0,0 +1,5 @@
+"""
+This script contains examples and explanation of the key functions of this package.
+
+TODO: describe the functions
+"""