diff --git a/src/books.js b/src/books.js
index c8119bb..7d61fde 100644
--- a/src/books.js
+++ b/src/books.js
@@ -38,27 +38,75 @@
 
 
 // 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: "Leigh 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(arr) {
   // Your code here:
-
+return `${arr.title} - ${arr.author} - ${arr.pages} pages`;
 }
 
-
-
 // Iteration 3 | Delete Language
 // Your code here:
+for (let i =0; i < booksArray.length; i++){
+  delete booksArray[i].details.language
+}
+console.log(booksArray);
 
 
 
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
+for ( let i = 0; i < booksArray.length; i++){
+  let time = Math.ceil((booksArray[i].pages * 500) / 90);
+  booksArray[i].readingTime = time;
+}
+console.log(booksArray);
 
 
 
@@ -86,15 +134,34 @@ const dictionary = {
     ],
 };
 
-function booksByAuthor() {
+function booksByAuthor(Dic) {
   // Your code here:
+  let bookObj = [];
+  for (const author in Dic){
+        for (let j = 0; j < Dic[author].length; j++){
+    let newArray = bookObj.push({
+      title: Dic[author][j][0],
+    pages: Dic[author][j][1],
+  author: author});
+  }  
+    }
+    return bookObj;
+  }
   
-}
+
 
 
 
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
+function averagePageCount(B) {
   // Your code here:
-  
+  let sum = 0;
+  let counter = 0;
+  for ( let i = 0; i < B.length; i++){
+    let pageNumber = B[i].pages;
+    sum += pageNumber;
+    counter ++
+  }
+  return sum/counter;
 }
+console.log(averagePageCount(booksArray));