diff --git a/notebooks/00.00-Preface.ipynb b/notebooks/00.00-Preface.ipynb
index 9ce9a5aca..d22431000 100644
--- a/notebooks/00.00-Preface.ipynb
+++ b/notebooks/00.00-Preface.ipynb
@@ -22,11 +22,11 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Let's see if we can create code block in md --   \n",
+    "A Let's see if we can create code block in md --   \n",
     "\n",
     "            book a = 2 about doing data science\n",
     "            which immediately begs the question\n",
-    "    what is data science"
+    "You know    what is data science"
    ]
   },
   {
diff --git a/notebooks/04.02-Simple-Scatter-Plots.ipynb b/notebooks/04.02-Simple-Scatter-Plots.ipynb
index de850cc00..16da691d7 100644
--- a/notebooks/04.02-Simple-Scatter-Plots.ipynb
+++ b/notebooks/04.02-Simple-Scatter-Plots.ipynb
@@ -62,9 +62,7 @@
   {
    "cell_type": "code",
    "execution_count": 2,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -94,9 +92,7 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -128,9 +124,7 @@
   {
    "cell_type": "code",
    "execution_count": 4,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -157,9 +151,7 @@
   {
    "cell_type": "code",
    "execution_count": 5,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -201,9 +193,7 @@
   {
    "cell_type": "code",
    "execution_count": 6,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -233,9 +223,7 @@
   {
    "cell_type": "code",
    "execution_count": 7,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -273,9 +261,7 @@
   {
    "cell_type": "code",
    "execution_count": 8,
-   "metadata": {
-    "collapsed": false
-   },
+   "metadata": {},
    "outputs": [
     {
      "data": {
@@ -345,9 +331,9 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.1"
+   "version": "3.6.8"
   }
  },
  "nbformat": 4,
- "nbformat_minor": 0
+ "nbformat_minor": 1
 }
diff --git a/notebooks/05.09-Principal-Component-Analysis.ipynb b/notebooks/05.09-Principal-Component-Analysis.ipynb
index 01f49a277..32d9f8030 100644
--- a/notebooks/05.09-Principal-Component-Analysis.ipynb
+++ b/notebooks/05.09-Principal-Component-Analysis.ipynb
@@ -29,7 +29,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#  In Depth: Principal Component Analysis"
+    "#  In Depth: New Component Analysis"
    ]
   },
   {