diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
index 23acfa7..16392b5 100644
--- a/debugging/book-library/index.html
+++ b/debugging/book-library/index.html
@@ -73,8 +73,8 @@ <h1>Library</h1>
     <table class="table" id="display">
       <thead class="thead-dark">
         <tr>
-          <th>Title</th>
           <th>Author</th>
+          <th>Title</th>
           <th>Number of Pages</th>
           <th>Read</th>
           <th></th>
@@ -87,6 +87,9 @@ <h1>Library</h1>
           <td></td>
           <td></td>
           <td></td>
+          <td>
+          <button type="button" onclick="delete(0)" class="dlt-btn btn-primary btn " id="dlt-btn"> Delete</button>
+          </td>
         </tr>
       </tbody>
     </table>
diff --git a/debugging/book-library/script.js b/debugging/book-library/script.js
index 75ce6c1..eea27d0 100644
--- a/debugging/book-library/script.js
+++ b/debugging/book-library/script.js
@@ -7,13 +7,8 @@ window.addEventListener("load", function (e) {
 
 function populateStorage() {
   if (myLibrary.length == 0) {
-    let book1 = new Book("Robison Crusoe", "Daniel Defoe", "252", true);
-    let book2 = new Book(
-      "The Old Man and the Sea",
-      "Ernest Hemingway",
-      "127",
-      true
-    );
+    let book1 = new Book("Daniel Defoe", "Robinson Crusoe", "252", true);
+    let book2 = new Book("Ernest Hemingway", "The Old Man and the Sea", "127", true);
     myLibrary.push(book1);
     myLibrary.push(book2);
     render();
@@ -25,20 +20,22 @@ const author = document.getElementById("author");
 const pages = document.getElementById("pages");
 const check = document.getElementById("check");
 
-//check the right input from forms and if its ok -> add the new book (object in array)
-//via Book function and start render function
+// Check the right input from forms and if it's ok -> add the new book (object in array)
+// via Book function and start render function
 function submit() {
   if (
     title.value == null ||
     title.value == "" ||
+    author.value == null ||
+    author.value == "" ||
     pages.value == null ||
     pages.value == ""
   ) {
     alert("Please fill all fields!");
     return false;
   } else {
-    let book = new Book(title.value, title.value, pages.value, check.checked);
-    library.push(book);
+    let book = new Book(title.value, author.value, pages.value, check.checked);
+    myLibrary.push(book);
     render();
   }
 }
@@ -53,11 +50,11 @@ function Book(title, author, pages, check) {
 function render() {
   let table = document.getElementById("display");
   let rowsNumber = table.rows.length;
-  //delete old table
-  for (let n = rowsNumber - 1; n > 0; n-- {
+  // Delete old table
+  for (let n = rowsNumber - 1; n > 0; n--) {
     table.deleteRow(n);
   }
-  //insert updated row and cells
+  // Insert updated row and cells
   let length = myLibrary.length;
   for (let i = 0; i < length; i++) {
     let row = table.insertRow(1);
@@ -65,22 +62,18 @@ function render() {
     let authorCell = row.insertCell(1);
     let pagesCell = row.insertCell(2);
     let wasReadCell = row.insertCell(3);
-    let deleteCell = row.insertCell(4);
+    let deleteCell = row.insertCell(4); // Change index to 4 for delete cell
+
     titleCell.innerHTML = myLibrary[i].title;
     authorCell.innerHTML = myLibrary[i].author;
     pagesCell.innerHTML = myLibrary[i].pages;
 
-    //add and wait for action for read/unread button
+    // Add and wait for action for read/unread button
     let changeBut = document.createElement("button");
     changeBut.id = i;
     changeBut.className = "btn btn-success";
     wasReadCell.appendChild(changeBut);
-    let readStatus = "";
-    if (myLibrary[i].check == false) {
-      readStatus = "Yes";
-    } else {
-      readStatus = "No";
-    }
+    let readStatus = myLibrary[i].check ? "Yes" : "No"; // Corrected logic
     changeBut.innerText = readStatus;
 
     changeBut.addEventListener("click", function () {
@@ -88,16 +81,16 @@ function render() {
       render();
     });
 
-    //add delete button to every row and render again
-    let delButton = document.createElement("button");
+    // Add delete button to every row and render again
+    let delBut = document.createElement("button");
     delBut.id = i + 5;
     deleteCell.appendChild(delBut);
     delBut.className = "btn btn-warning";
     delBut.innerHTML = "Delete";
-    delBut.addEventListener("clicks", function () {
+    delBut.addEventListener("click", function () { // Fixed typo here
       alert(`You've deleted title: ${myLibrary[i].title}`);
       myLibrary.splice(i, 1);
       render();
     });
   }
-}
+}
\ No newline at end of file