diff --git a/Chapter 05/Code Samples/ch5_while.js b/Chapter 05/Code Samples/ch5_while.js
index 7d3103e..c37ff76 100755
--- a/Chapter 05/Code Samples/ch5_while.js	
+++ b/Chapter 05/Code Samples/ch5_while.js	
@@ -11,7 +11,6 @@ while (notFound && someArray.length > 0) {
   if (someArray[0] === "Louiza") {
     console.log("Found her!");
     notFound = false;
-    console.log("false");
   } else {
     someArray.shift();
   }
diff --git a/Chapter 10/Code Samples/ch10-accessing.html b/Chapter 10/Code Samples/ch10-accessing.html
new file mode 100755
index 0000000..63d2975
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-accessing.html	
@@ -0,0 +1,11 @@
+<html>
+  <body>
+    <h1 style="color:pink;">Just an example</h1>
+    <div id="one" class="example">Hi!</div>
+    <div id="two" class="example">Hi!</div>
+    <div id="three" class="something">Hi!</div>
+  </body>
+  <script>
+    console.log(document.getElementById("two"));
+  </script>
+</html>
diff --git a/Chapter 10/Code Samples/ch10-attributes.html b/Chapter 10/Code Samples/ch10-attributes.html
new file mode 100755
index 0000000..98a94fc
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-attributes.html	
@@ -0,0 +1,26 @@
+<html>
+  <body>
+    <script>
+      function changeAttr(){
+        let el = document.getElementById("shape");
+        el.setAttribute("style", "background-color:red;border:1px solid black");
+        el.setAttribute("id", "new");
+        el.setAttribute("class", "circle");
+      
+      }
+    </script>
+    <style>
+      div {
+        height: 100px;
+        width: 100px;
+        background-color: yellow;
+      }
+      .circle {
+        border-radius: 50%;
+      }
+    </style>
+    <div id="shape" class="square"></div>
+    
+    <button onclick="changeAttr()">Change attributes...</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-classes.html b/Chapter 10/Code Samples/ch10-classes.html
new file mode 100755
index 0000000..fda8be4
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-classes.html	
@@ -0,0 +1,27 @@
+<html>
+  <body>
+    <script>
+      function disappear(){
+        document.getElementById("shape").classList.add("hide");
+      }
+    </script>
+    <style>
+      .hide {
+        display: none;
+      }
+
+      .square {
+        height: 100px;
+        width: 100px;
+        background-color: yellow;
+      }
+
+      .square.blue {
+        background-color: blue;
+      }
+    </style>
+    <div id="shape" class="square blue"></div>
+    
+    <button onclick="disappear()">Disappear!</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-classes2.html b/Chapter 10/Code Samples/ch10-classes2.html
new file mode 100755
index 0000000..8c60154
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-classes2.html	
@@ -0,0 +1,23 @@
+<html>
+  <body>
+    <script>
+      function change(){
+        document.getElementById("shape").classList.remove("blue");
+      }
+    </script>
+    <style>
+      .square {
+        height: 100px;
+        width: 100px;
+        background-color: yellow;
+      }
+
+      .square.blue {
+        background-color: blue;
+      }
+    </style>
+    <div id="shape" class="square blue"></div>
+    
+    <button onclick="change()">Change!</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-classes3.html b/Chapter 10/Code Samples/ch10-classes3.html
new file mode 100755
index 0000000..dc9b15f
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-classes3.html	
@@ -0,0 +1,23 @@
+<html>
+  <body>
+    <script>
+      function changeVisibility(){
+        document.getElementById("shape").classList.toggle("hide");
+      }
+    </script>
+    <style>
+      .hide {
+        display: none;
+      }
+
+      .square {
+        height: 100px;
+        width: 100px;
+        background-color: yellow;
+      }
+    </style>
+    <div id="shape" class="square"></div>
+    
+    <button onclick="changeVisibility()">Magic!</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-click.html b/Chapter 10/Code Samples/ch10-click.html
new file mode 100755
index 0000000..884e935
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-click.html	
@@ -0,0 +1,23 @@
+<!-- <html>
+  <body>
+    <div id="one" onclick="alert('Auch! Stop it!')">Don't click here!</div>
+  </body>
+</html>
+
+
+<html>
+  <body>
+    <script>
+      function stop(){
+        alert("Auch! Stop it!");
+      }
+    </script>
+    <div id="one" onclick="stop()">Don't click here!</div>
+  </body>
+</html> -->
+
+<html>
+  <body>
+    <div id="one">Don't click here!</div>
+  </body>
+</html>
diff --git a/Chapter 10/Code Samples/ch10-colors.html b/Chapter 10/Code Samples/ch10-colors.html
new file mode 100755
index 0000000..71bd8e4
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-colors.html	
@@ -0,0 +1,27 @@
+<html>
+  <body>
+    <script>
+      function rainbowify(){
+        let divs = document.getElementsByTagName("div");
+        for(let i = 0; i < divs.length; i++) {
+          divs[i].style.backgroundColor = divs[i].id;
+        }
+      }
+    </script>
+    <style>
+      div {
+        height: 30px;
+        width: 30px;
+        background-color: white;
+      }
+    </style>
+    <div id="red"></div>
+    <div id="orange"></div>
+    <div id="yellow"></div>
+    <div id="green"></div>
+    <div id="blue"></div>
+    <div id="indigo"></div>
+    <div id="violet"></div>
+    <button onclick="rainbowify()">Make me a rainbow</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-domflow.html b/Chapter 10/Code Samples/ch10-domflow.html
new file mode 100755
index 0000000..065706e
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-domflow.html	
@@ -0,0 +1,33 @@
+<html>
+  <body>
+    <style>
+      div {
+        border: 1px solid black;
+        margin-left: 5px;
+      }
+    </style>
+    <div id="message">Bubbling events</div>
+    <div id="output">
+      1
+      <div>
+        2
+        <div>
+          3
+          <div>
+            4
+            <div>5</div>
+          </div>
+        </div>
+      </div>
+    </div>
+    <script>
+      function bup() {
+        console.log(this.innerText);
+      }
+      let divs = document.getElementsByTagName("div");
+      for (let i = 0; i < divs.length; i++) {
+        divs[i].addEventListener("click", bup);
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 10/Code Samples/ch10-event-listener.html b/Chapter 10/Code Samples/ch10-event-listener.html
new file mode 100755
index 0000000..a92835b
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-event-listener.html	
@@ -0,0 +1,16 @@
+<html>
+  <body>
+    <script>
+      window.onload = function() {
+        document.getElementById("square").addEventListener("click", changeColor);
+      }
+      function changeColor(){
+        let red = Math.floor(Math.random() * 256);
+        let green = Math.floor(Math.random() * 256);
+        let blue = Math.floor(Math.random() * 256);
+        this.style.backgroundColor = `rgb(${red}, ${green}, ${blue})`;
+      }
+    </script>
+    <div id="square" style="width:100px;height:100px;background-color:grey;">Click for magic</div>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-new-element.html b/Chapter 10/Code Samples/ch10-new-element.html
new file mode 100755
index 0000000..1563be8
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-new-element.html	
@@ -0,0 +1,12 @@
+<html>
+  <body>
+    <script>
+      function addRandomNumber(){
+        let el = document.createElement("p");
+        el.innerText = Math.floor(Math.random() * 100);
+        document.body.appendChild(el);
+      }
+    </script>
+    <button onclick="addRandomNumber()">Add a number</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-selectionelements.html b/Chapter 10/Code Samples/ch10-selectionelements.html
new file mode 100755
index 0000000..9ea0f82
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-selectionelements.html	
@@ -0,0 +1,8 @@
+<html>
+  <body>
+    <h1>Welcome page</h1>
+    <p id="greeting">
+      Hi!
+    </p>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-this.html b/Chapter 10/Code Samples/ch10-this.html
new file mode 100755
index 0000000..dd981f7
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-this.html	
@@ -0,0 +1,10 @@
+<html>
+  <body>
+    <script>
+      function reveal(el){
+        console.log(el.parentElement);
+      }
+    </script>
+    <button onclick="reveal(this)">Click here!</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-toggle-visibility.html b/Chapter 10/Code Samples/ch10-toggle-visibility.html
new file mode 100755
index 0000000..c5e9e83
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-toggle-visibility.html	
@@ -0,0 +1,16 @@
+<html>
+  <body>
+    <script>
+      function toggleDisplay(){
+        let p = document.getElementById("magic");
+        if(p.style.display === "none") {
+          p.style.display = "block";
+        } else {
+          p.style.display = "none";
+        }
+      }
+    </script>
+    <p id="magic">I might disappear and appear.</p>
+    <button onclick="toggleDisplay()">Magic!</button>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 10/Code Samples/ch10-treasure.html b/Chapter 10/Code Samples/ch10-treasure.html
new file mode 100755
index 0000000..0e62cf1
--- /dev/null
+++ b/Chapter 10/Code Samples/ch10-treasure.html	
@@ -0,0 +1,19 @@
+<html>
+  <body>
+    <h1>Let's find the treasure</h1>
+    <div id="forest">
+      <div id="tree1">
+        <div id="squirrel"></div>
+        <div id="flower"></div>
+      </div>
+      <div id="tree2">
+        <div id="shrubbery">
+          <div id="treasure"></div>
+        </div>
+        <div id="mushroom">
+          <div id="bug"></div>
+        </div>
+      </div>
+    </div>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 11/Code Samples/ch11-animate.html b/Chapter 11/Code Samples/ch11-animate.html
new file mode 100755
index 0000000..0d9a6fc
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-animate.html	
@@ -0,0 +1,30 @@
+<html>
+  <style>
+    div {
+      background-color: purple;
+      width: 100px;
+      height: 100px;
+      position: absolute;
+    }
+  </style>
+  <body>
+    <button onclick="toTheRight()">Go right</button>
+    <div id="block"></div>
+
+    <script>
+      function toTheRight() {
+        let b = document.getElementById("block");
+        let x = 0;
+        setInterval(function () {
+          if (x === 600) {
+            clearInterval();
+          } else {
+            x++;
+            b.style.left = x + "px";
+          }
+        }, 2);
+        
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-dragdrop.html b/Chapter 11/Code Samples/ch11-dragdrop.html
new file mode 100755
index 0000000..7ab766c
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-dragdrop.html	
@@ -0,0 +1,46 @@
+<html>
+  <head>
+    <style>
+      .box {
+        height: 200px;
+        width: 200px;
+        padding: 20px;
+        margin: 0 50px;
+        display: inline-block;
+        border: 1px solid black;
+      }
+
+      #dragme {
+        background-color: red;
+      }
+    </style>
+  </head>
+
+  <body>
+    <div class="box" ondrop="dDrop()" ondragover="nDrop()">
+      1
+      <div id="dragme" ondragstart="dStart()" draggable="true">
+        Drag Me Please!
+      </div>
+    </div>
+    <div class="box" ondrop="dDrop()" ondragover="nDrop()">2</div>
+   <script>
+      let holderItem;
+
+      function dStart() {
+        holderItem = event.target;
+      }
+
+      function nDrop() {
+        event.preventDefault();
+      }
+
+      function dDrop() {
+       // event.preventDefault();
+        if (event.target.className == "box") {
+          event.target.appendChild(holderItem);
+        }
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-eventtarget.html b/Chapter 11/Code Samples/ch11-eventtarget.html
new file mode 100755
index 0000000..3c48b7a
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-eventtarget.html	
@@ -0,0 +1,10 @@
+<html>
+  <body>
+    <button type="button" onclick="triggerSomething()">Click</button>
+    <script>
+      function triggerSomething() {
+        console.dir(event.target);
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-formcontent.html b/Chapter 11/Code Samples/ch11-formcontent.html
new file mode 100755
index 0000000..774a4e6
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-formcontent.html	
@@ -0,0 +1,21 @@
+<html>
+  <body>
+    <div id="welcome">Hi there!</div>
+    <form>
+      <input type="text" name="firstname" placeholder="First name" />
+      <input type="text" name="lastname" placeholder="Last name" />
+      <input type="button" onclick="sendInfo()" value="Submit" />
+    </form>
+    <script>
+      function sendInfo() {
+        console.dir(event);
+        let p = event.target.parentElement;
+        message("Welcome " + p.firstname.value + " " + p.lastname.value);
+      }
+
+      function message(m) {
+        document.getElementById("welcome").innerHTML = m;
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-formsubmit.html b/Chapter 11/Code Samples/ch11-formsubmit.html
new file mode 100755
index 0000000..e48855f
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-formsubmit.html	
@@ -0,0 +1,8 @@
+<html>
+  <body>
+    <form action="anotherpage.html" method="get" onsubmit="doStuff()">
+      <input type="text" placeholder="name" name="name" />
+      <input type="submit" value="send" />
+    </form>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-formsubmitreturn.html b/Chapter 11/Code Samples/ch11-formsubmitreturn.html
new file mode 100755
index 0000000..c3697dd
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-formsubmitreturn.html	
@@ -0,0 +1,33 @@
+<html>
+  <body>
+    <div id="wrapper"></div>
+    <form action="anotherpage.html" method="get" onsubmit="return valForm()">
+      <input type="text" id="firstName" name="firstName" placeholder="First name" />
+      <input type="text" id="lastName" name="lastName" placeholder="Last name" />
+      <input type="text" id="age" name="age" placeholder="Age" />
+      <input type="submit" value="submit" />
+    </form>
+    <script>
+      function valForm() {
+        var p = event.target.children;
+        if (p.firstName.value == "") {
+          message("Need a first name!!");
+          return false;
+        }
+        if (p.lastName.value == "") {
+          message("Need a last name!!");
+          return false;
+        }
+        if (p.age.value == "") {
+          message("Need an age!!");
+          return false;
+        }
+        return true;
+      }
+
+      function message(m) {
+        document.getElementById("wrapper").innerHTML = m;
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-keyevent.html b/Chapter 11/Code Samples/ch11-keyevent.html
new file mode 100755
index 0000000..0e01b27
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-keyevent.html	
@@ -0,0 +1,23 @@
+<html>
+  <body>
+    <body>
+      <div id="wrapper">JavaScript is fun!</div>
+      <input type="text" name="myNum1" onkeypress="numCheck()">
+      <input type="text" name="myNum2" onkeypress="numCheck2()">
+      <script>
+        function numCheck() {
+            message("Number: " + !isNaN(event.key));
+            return !isNaN(event.key);
+        }
+
+        function numCheck2() {
+            message("Not a number: " + isNaN(event.key));
+            return isNaN(event.key);
+        }
+
+        function message(m) {
+            document.getElementById('wrapper').innerHTML = m;
+        }
+      </script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 11/Code Samples/ch11-keyeventreturn.html b/Chapter 11/Code Samples/ch11-keyeventreturn.html
new file mode 100755
index 0000000..cb9771f
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-keyeventreturn.html	
@@ -0,0 +1,23 @@
+<html>
+  <body>
+    <body>
+      <div id="wrapper">JavaScript is fun!</div>
+      <input type="text" name="myNum1" onkeypress="return numCheck()" onpaste="return false">
+      <input type="text" name="myNum2" onkeypress="return numCheck2()" onpaste="return false">
+      <script>
+        function numCheck() {
+            message(!isNaN(event.key));
+            return !isNaN(event.key);
+        }
+
+        function numCheck2() {
+            message(isNaN(event.key));
+            return isNaN(event.key);
+        }
+
+        function message(m) {
+            document.getElementById('wrapper').innerHTML = m;
+        }
+      </script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/Chapter 11/Code Samples/ch11-mouseevents.html b/Chapter 11/Code Samples/ch11-mouseevents.html
new file mode 100755
index 0000000..8cacf4c
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-mouseevents.html	
@@ -0,0 +1,11 @@
+
+<html>
+  <body>
+    <div id="divvy" onmouseup="changeColor()" style="width: 100px; height: 100px; background-color: pink;">
+    <script>
+      function changeColor() {
+        document.getElementById("divvy").style.backgroundColor = "blue";
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-mouseevents2.html b/Chapter 11/Code Samples/ch11-mouseevents2.html
new file mode 100755
index 0000000..00c8df0
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-mouseevents2.html	
@@ -0,0 +1,20 @@
+
+<html>
+  <body>
+    <div id="divvy" style="width: 100px; height: 100px; background-color: pink;">
+    <script>
+      window.onload = function donenow() {
+        console.log("hi");
+        document.getElementById("divvy").addEventListener("mousedown", function() { changeColor(this, "green"); });
+        document.getElementById("divvy").addEventListener("mouseup", function() { changeColor(this, "yellow"); });
+        document.getElementById("divvy").addEventListener("dblclick", function() { changeColor(this, "black"); });
+        document.getElementById("divvy").addEventListener("mouseout", function() { changeColor(this, "blue"); });
+      }
+      console.log("hi2");
+
+      function changeColor(el, color) {
+        el.style.backgroundColor = color;
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-onchang-onblur.html b/Chapter 11/Code Samples/ch11-onchang-onblur.html
new file mode 100755
index 0000000..f3977e0
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-onchang-onblur.html	
@@ -0,0 +1,29 @@
+<html>
+  <body>
+    <div id="welcome">Hi there!</div>
+    <form>
+      <input type="text" name="firstname" placeholder="First name" onchange="logEvent()" />
+      <input type="text" name="lastname" placeholder="Last name" onblur="logEvent()" />
+      <input type="button" onclick="sendInfo()" value="Submit" />
+    </form>
+    <script>
+      function logEvent() {
+        let p = event.target;
+        if (p.name == "firstname") {
+          message("First Name Changed to  " + p.value);
+        } else {
+          message("Last Name Changed to  " + p.value);
+        }
+      }
+
+      function sendInfo() {
+        let p = event.target.parentElement;
+        message("Welcome " + p.firstname.value + " " + p.lastname.value);
+      }
+
+      function message(m) {
+        document.getElementById("welcome").innerHTML = m;
+      }
+    </script>
+  </body>
+</html>
diff --git a/Chapter 11/Code Samples/ch11-specifyingevents.html b/Chapter 11/Code Samples/ch11-specifyingevents.html
new file mode 100755
index 0000000..8e3cc0c
--- /dev/null
+++ b/Chapter 11/Code Samples/ch11-specifyingevents.html	
@@ -0,0 +1,13 @@
+
+<html>
+  <body>
+    <p id="unique" onclick="magic()">Click here for magic!</p>
+
+    <script>
+      document.getElementById("unique").onclick = function() { magic() };
+      document.getElementById("unique").addEventListener("click", magic);
+      document.getElementById("unique").addEventListener("click", function() { magic(arg1, arg2) });
+
+    </script>
+  </body>
+</html>
diff --git a/errata.md b/errata.md
index a91cf4c..10b82b6 100644
--- a/errata.md
+++ b/errata.md
@@ -25,25 +25,3 @@ if(hobby = "coding"){
 
 ## Chapter 14, Page 379 - Replaced `Exercise 14.4` with correct solution
 Solution for [Exercise 14.4](https://github.com/PacktPublishing/JavaScript-from-Beginner-to-Professional/blob/main/Chapter%2014/Exercise_14.4.html) is now fixed.
-
-
-## Chapter 05, Page 89 - Added the missing `console.log` statement on line 8 to match the output
-```
-while (notFound && someArray.length > 0) {
-  if (someArray[0] === "Louiza") {
-    console.log("Found her!");
-    notFound = false;
-    console.log("false");
-  } else {
-    someArray.shift();
-  }
-}
-```
-## Chapter05, Page 112 - Rephrased the 2nd paragrah on the page.
-"We are looking for all the groups that have two or more names starting with an M. If we find such a group, we will log it."
-
-
-## Practice exercise 6.4, Page 129 - Fixed the incorrect referencing
-Modify the calculator that you made in Practice exercise `6.2` 
-should be
-Modify the calculator that you made in Practice exercise `6.4`
