diff --git a/Day 4 lecture.md b/Day 4 lecture.md
new file mode 100644
index 0000000..b08a9f4
--- /dev/null
+++ b/Day 4 lecture.md	
@@ -0,0 +1,8 @@
+* Review of day 3, questions
+* Homework review
+* Reading review
+    * Class/static/instance methods
+    * Direct access via `\_\_dict\_\_`
+    * Containers
+    * Descriptors
+    * Slots
\ No newline at end of file