diff --git a/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb b/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb
index 1d058cc..a387d23 100644
--- a/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb
+++ b/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb
@@ -4,7 +4,7 @@
   "metadata": {
     "colab": {
       "provenance": [],
-      "authorship_tag": "ABX9TyNHifufahHPhghaXpcrZ7c5",
+      "authorship_tag": "ABX9TyMMms8JzNSVjQ3tqcXxUWCD",
       "include_colab_link": true
     },
     "kernelspec": {
@@ -233,7 +233,7 @@
     {
       "cell_type": "markdown",
       "source": [
-        "Notice that the samples have a tendencey to move toward the center.  Now let's look at the histogram of the samples at each stage"
+        "Notice that the samples have a tendency to move toward the center.  Now let's look at the histogram of the samples at each stage"
       ],
       "metadata": {
         "id": "SGTYGGevAktz"