diff --git a/s25/Louis_Lecture_Notes/15_CSVs/Lec_15_CSVs.ipynb b/s25/Louis_Lecture_Notes/15_CSVs/Lec_15_CSVs.ipynb
index b92b72bc1831d5232906fbe1a8225bd56f63623d..37e29bcffc0fe3f14c7420aedcf3ad284e9f113a 100644
--- a/s25/Louis_Lecture_Notes/15_CSVs/Lec_15_CSVs.ipynb
+++ b/s25/Louis_Lecture_Notes/15_CSVs/Lec_15_CSVs.ipynb
@@ -1,5 +1,21 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Announcement\n",
+    "\n",
+    "### CS 220 Enrichment Activities\n",
+    "Students interested in working on a real-world data set and learning about the full data processing pipeline?\n",
+    "\n",
+    "Voluntary working groups will learn about data management, data wrangling/processing, modeling, and reporting/communication skills.\n",
+    "\n",
+    "**When: Thursday, March 6th @ 4pm**\n",
+    "\n",
+    "**Where: Computer Science Room 1325**"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},