diff --git a/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb b/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb
index 7c6542a..56e0628 100644
--- a/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb
+++ b/Notebooks/Chap18/18_1_Diffusion_Encoder.ipynb
@@ -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"
@@ -418,7 +418,7 @@
         "    # 1. For each x (value in x_plot_vals):\n",
         "      # 2. Compute the mean and variance of the diffusion kernel at time t\n",
         "      # 3. Compute pdf of this Gaussian at every x_plot_val\n",
-        "      # 4. Weight Gaussian by probability at position x and by 0.01 to componensate for bin size\n",
+        "      # 4. Weight Gaussian by probability at position x and by 0.01 to compensate for bin size\n",
         "      # 5. Accumulate weighted Gaussian in marginal at time t.\n",
         "    # 6. Multiply result by 0.01 to compensate for bin size\n",
         "    # Replace this line:\n",