diff --git a/src/books.js b/src/books.js
index c8119bb..19d80e8 100644
--- a/src/books.js
+++ b/src/books.js
@@ -1,6 +1,45 @@
 // Iteration 1 | Books Array
 
 // Book 1
+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.",
+  }
+}
+]
 // title: The Old Man and the Sea
 // pages: 128
 // author: Ernest Hemingway
@@ -38,14 +77,16 @@
 
 
 // Your code here:
-const booksArray = [];
+
 
 
 
 
 // Iteration 2 | Book Details
-function getBookDetails() {
+function getBookDetails(book) {
   // Your code here:
+  const bookdetail = `${book.title} - ${book.author} - ${book.pages} pages`
+  return bookdetail;
 
 }
 
@@ -53,14 +94,18 @@ function getBookDetails() {
 
 // Iteration 3 | Delete Language
 // Your code here:
-
+for(let i = 0;  i < booksArray.length; i++){
+  delete booksArray[i].details.language;
+}
 
 
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
 
-
+for(let i = 0;  i < booksArray.length; i++){
+  booksArray[i].readingTime = Math.ceil((booksArray[i].pages * 500) / 90)
+}
 
 
 // Bonus: Iteration 5 | Books Dictionary
@@ -69,26 +114,34 @@ function getBookDetails() {
  The book info is stored in arrays with structure: [title, pages]. 
 */
 const dictionary = {
-    "J. K. Rowling": [
-        ["Harry Potter and the Philosopher's Stone", 223],
-        ["Harry Potter and the Chamber of Secrets", 251],
-        ["Harry Potter and the Prisoner of Azkaban", 317],
-        ["Harry Potter and the Goblet of Fire", 636],
-    ],
-    "Neal Stephenson": [
-        ["Cryptonomicon", 928],
-        ["Anathem", 1008],
-        ["Fall; or, Dodge in Hell", 896],
-    ],
-    "Malcolm Gladwell": [
-        ["Outliers", 320],
-        ["Blink", 287],
-    ],
+  "J. K. Rowling": [
+    ["Harry Potter and the Philosopher's Stone", 223],
+    ["Harry Potter and the Chamber of Secrets", 251],
+    ["Harry Potter and the Prisoner of Azkaban", 317],
+    ["Harry Potter and the Goblet of Fire", 636],
+  ],
+  "Neal Stephenson": [
+    ["Cryptonomicon", 928],
+    ["Anathem", 1008],
+    ["Fall; or, Dodge in Hell", 896],
+  ],
+  "Malcolm Gladwell": [
+    ["Outliers", 320],
+    ["Blink", 287],
+  ],
 };
 
-function booksByAuthor() {
+function booksByAuthor(dictionary) {
   // Your code here:
-  
+    const result = []
+  for(let cle in dictionary){
+     dictionary[cle].forEach(function(element) {
+      result.push({title : element[0], pages : element[1], author: cle});
+  });
+
+  }
+ return result;
+
 }
 
 
@@ -96,5 +149,5 @@ function booksByAuthor() {
 // Bonus: Iteration 6 | Average Page Count
 function averagePageCount() {
   // Your code here:
-  
+
 }