diff --git a/src/books.js b/src/books.js
index c8119bb..d8308c9 100644
--- a/src/books.js
+++ b/src/books.js
@@ -38,27 +38,79 @@
 
 
 // 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..."
+    }
+  }
+];
 
 
 
 
-// Iteration 2 | Book Details
-function getBookDetails() {
-  // Your code here:
 
+// Iteration 2 | Book Details
+function getBookDetails(book) {
+  return book.title + " - " + book.author + " - " + book.pages + " pages";
 }
 
 
+console.log(getBookDetails(booksArray[3]));
+
+
+
 
 // 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 readingTime = (booksArray[i].pages * 500) / 90;
+  booksArray[i].readingTime = Math.ceil(readingTime); 
+}
+
+console.log(booksArray);
+
 
 
 
@@ -86,15 +138,37 @@ const dictionary = {
     ],
 };
 
-function booksByAuthor() {
-  // Your code here:
-  
+function booksByAuthor(dictionary) {
+  const result = [];
+
+  for (let author in dictionary) {
+    let books = dictionary[author];
+
+    for (let i = 0; i < books.length; i++) {
+      result.push({
+        title: books[i][0],
+        pages: books[i][1],
+        author: author
+      });
+    }
+  }
+
+  return result;
 }
 
 
 
+
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
-  // Your code here:
-  
+function averagePageCount(books) {
+  let total = 0;
+
+  for (let i = 0; i < books.length; i++) {
+    total += books[i].pages;
+  }
+
+  return total / books.length;
 }
+
+
+console.log(averagePageCount(booksArray));
\ No newline at end of file