diff --git a/src/books.js b/src/books.js
index c8119bb..b92c382 100644
--- a/src/books.js
+++ b/src/books.js
@@ -1,52 +1,56 @@
 // Iteration 1 | Books Array
 
-// Book 1
-// title: The Old Man and the Sea
-// pages: 128
-// author: Ernest Hemingway
-// details: {
-//    language: English
-//    description: One of Hemingway's most famous works, it tells the story of Santiago...
-// }
-
-// Book 2
-// title: The Airbnb Story
-// pages: 256
-// author: Leight Gallagher
-// details: {
-//    language: English
-//    description: This is the remarkable behind-the-scenes story of the creation and growth of Airbnb...
-// }
-
-// Book 3
-// title: Educated - A Memoir
-// pages: 352
-// author: Tara Westover
-// details: {
-//    language: English
-//    description: Educated is an account of the struggle for self-invention...
-// }
-
-// Book 4
-// title: The Art of Learning
-// pages: 288
-// author: Josh Waitzkin
-// details: {
-//    language: English
-//    description: The Art of Learning takes readers through Waitzkin's unique journey to excellence. He explains in clear detail how a well-thought-out, principled approach to learning is what separates success from failure.
-// }
-
 
 // Your code here:
-const booksArray = [];
+const booksArray = [
+  {
+   title: "The Old Man and the Sea", 
+   pages: 128, 
+   author: "Ernest Hemingway", 
+   details: {
+       language: "English",
+       description: "One of Hemingway's most famous works, it tells the story of Santiago..."
+    }
+  },
+
+{
+  title: "The Airbnb Story",
+ pages: 256,
+ author: "Leight Gallagher",
+ details: {
+   language: "English",
+   description: "This is the remarkable behind-the-scenes story of the creation and growth of Airbnb..."
+  }
+},
+
+{
+  title: "Educated - A Memoir",
+ pages: 352,
+ author: "Tara Westover",
+ details: {
+  language: "English",
+  description: "Educated is an account of the struggle for self-invention..."
+ }
+},
+
+{
+  title: "The Art of Learning",
+ pages: 288,
+ author: "Josh Waitzkin",
+ details: {
+  language: "English",
+  description: "The Art of Learning takes readers through Waitzkin's unique journey to excellence. He explains in clear detail how a well-thought-out, principled approach to learning is what separates success from failure."
+ }
+}
+];
 
 
 
 
 // Iteration 2 | Book Details
-function getBookDetails() {
+function getBookDetails(book) {
   // Your code here:
-
+ return `${book.title} - ${book.author} - ${book.pages} pages`;
 }
 
 
@@ -54,14 +58,28 @@ function getBookDetails() {
 // Iteration 3 | Delete Language
 // Your code here:
 
+for (let index in booksArray) {
+  delete booksArray[index].details.language;
+}
+//console.log(booksArray);
 
-
-
+   
 // Iteration 4 | Estimated Reading Time
 // Your code here:
 
+for (let index in booksArray) {
+  const book = booksArray[index];
+  const wordsPerPage = 500;
+  const readingSpeed = 90;
+
+  const readingTime = Math.ceil((book.pages * wordsPerPage) / readingSpeed);
+
+  book.readingTime = readingTime; // 
+  }
 
+console.log(booksArray);
 
+//console.log(booksArray);
 
 // Bonus: Iteration 5 | Books Dictionary
 
diff --git a/src/tempCodeRunnerFile.js b/src/tempCodeRunnerFile.js
new file mode 100644
index 0000000..142d049
--- /dev/null
+++ b/src/tempCodeRunnerFile.js
@@ -0,0 +1,4 @@
+for (let index in booksArray) {
+
+  booksArray[index].details.readingTime = 5 ;
+}
\ No newline at end of file