diff --git a/src/books.js b/src/books.js
index c8119bb..fcdb750 100644
--- a/src/books.js
+++ b/src/books.js
@@ -1,64 +1,85 @@
 // 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.
-// }
-
+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."
+}
+}
 
-// Your code here:
-const booksArray = [];
+]
 
 
 
 
 // Iteration 2 | Book Details
-function getBookDetails() {
+function getBookDetails(details) {
   // Your code here:
+ 
+    return (`${details.title} - ${details.author} - ${details.pages} pages`)
+     
 
 }
+getBookDetails(booksArray)
 
 
 
 // Iteration 3 | Delete Language
 // Your code here:
+booksArray.forEach((element)=>{
+   delete element.details.language
+  console.log(booksArray)
+  return element
+ 
+
+})
+
+
 
 
 
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
+booksArray.forEach((goods)=>{
+  goods.readingTime= Math.ceil((goods.pages*500)/90)
+  console.log(booksArray)
+  return goods
+})
 
 
 
@@ -68,7 +89,7 @@ function getBookDetails() {
 /* The `dictionary` is an object containing books grouped by author. 
  The book info is stored in arrays with structure: [title, pages]. 
 */
-const dictionary = {
+const dictionaryExample = {
     "J. K. Rowling": [
         ["Harry Potter and the Philosopher's Stone", 223],
         ["Harry Potter and the Chamber of Secrets", 251],
@@ -86,10 +107,9 @@ const dictionary = {
     ],
 };
 
-function booksByAuthor() {
+function booksByAuthor() {}
   // Your code here:
-  
-}
+