diff --git a/code/ch01/ch01.ipynb b/code/ch01/ch01.ipynb
index f223b434..ab7777a3 100644
--- a/code/ch01/ch01.ipynb
+++ b/code/ch01/ch01.ipynb
@@ -4,14 +4,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "More information about the book at https://github.com/rasbt/python-machine-learning-book"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
diff --git a/code/ch02/ch02.ipynb b/code/ch02/ch02.ipynb
index 3074a448..c06916dc 100644
--- a/code/ch02/ch02.ipynb
+++ b/code/ch02/ch02.ipynb
@@ -4,14 +4,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "More information about the book at https://github.com/rasbt/python-machine-learning-book"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
diff --git a/code/ch03/ch03.ipynb b/code/ch03/ch03.ipynb
index 87854298..eb5e8c4e 100644
--- a/code/ch03/ch03.ipynb
+++ b/code/ch03/ch03.ipynb
@@ -4,7 +4,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
diff --git a/code/ch04/ch04.ipynb b/code/ch04/ch04.ipynb
index 1f02c58f..8d0c094e 100644
--- a/code/ch04/ch04.ipynb
+++ b/code/ch04/ch04.ipynb
@@ -4,7 +4,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
diff --git a/code/ch05/ch05.ipynb b/code/ch05/ch05.ipynb
index 7c37df5a..0bc0d71b 100644
--- a/code/ch05/ch05.ipynb
+++ b/code/ch05/ch05.ipynb
@@ -4,7 +4,9 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
diff --git a/code/ch06/ch06.ipynb b/code/ch06/ch06.ipynb
index 96e4907b..33d1f028 100644
--- a/code/ch06/ch06.ipynb
+++ b/code/ch06/ch06.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
@@ -496,7 +498,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Using k-fold cross validation to assess model performances"
+    "# Using k-fold cross validation to assess model performance"
    ]
   },
   {
diff --git a/code/ch07/ch07.ipynb b/code/ch07/ch07.ipynb
index 8d917110..d1b7e8d7 100644
--- a/code/ch07/ch07.ipynb
+++ b/code/ch07/ch07.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
diff --git a/code/ch08/ch08.ipynb b/code/ch08/ch08.ipynb
index ed45f5e9..a827173b 100644
--- a/code/ch08/ch08.ipynb
+++ b/code/ch08/ch08.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
diff --git a/code/ch09/ch09.ipynb b/code/ch09/ch09.ipynb
index 5e600f2a..af2d1c4e 100644
--- a/code/ch09/ch09.ipynb
+++ b/code/ch09/ch09.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
diff --git a/code/ch10/ch10.ipynb b/code/ch10/ch10.ipynb
index fc1d8609..eae55e29 100644
--- a/code/ch10/ch10.ipynb
+++ b/code/ch10/ch10.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "#Python Machine Learning Essentials"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
diff --git a/code/ch11/ch11.ipynb b/code/ch11/ch11.ipynb
index 69f9b7a6..95db2cd7 100644
--- a/code/ch11/ch11.ipynb
+++ b/code/ch11/ch11.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
diff --git a/code/ch12/ch12.ipynb b/code/ch12/ch12.ipynb
index 74d867ea..a8925b82 100644
--- a/code/ch12/ch12.ipynb
+++ b/code/ch12/ch12.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {
diff --git a/code/ch13/ch13.ipynb b/code/ch13/ch13.ipynb
index 978b9d32..3885e1cc 100644
--- a/code/ch13/ch13.ipynb
+++ b/code/ch13/ch13.ipynb
@@ -4,14 +4,16 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Sebastian Raschka, 2015"
+    "[Sebastian Raschka](http://sebastianraschka.com), 2015\n",
+    "\n",
+    "https://github.com/rasbt/python-machine-learning-book"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Python Machine Learning Code Examples"
+    "# Python Machine Learning - Code Examples"
    ]
   },
   {