diff --git a/src/books.js b/src/books.js
index c8119bb..67c1c86 100644
--- a/src/books.js
+++ b/src/books.js
@@ -1,100 +1,113 @@
 // 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() {
-  // Your code here:
+function getBookDetails(bookDetails) {
+	let title = bookDetails.title;
+	let author = bookDetails.author;
+	let pages = bookDetails.pages;
 
+	return `${title} - ${author} - ${pages} pages`;
 }
 
-
+//-----------------------------------------------------------------------------------------------------------------------------------------
 
 // Iteration 3 | Delete Language
 // Your code here:
 
+booksArray.forEach((e) => {
+	delete e.details.language;
+});
 
-
+//-----------------------------------------------------------------------------------------------------------------------------------------
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
 
+booksArray.forEach((e, i) => {
+	let numberOfPages = (booksArray[i].pages * 500) / 90;
+	e.readingTime = Math.ceil(numberOfPages);
+});
 
-
+//console.log(booksArray);
+//-----------------------------------------------------------------------------------------------------------------------------------------
 
 // Bonus: Iteration 5 | Books Dictionary
-
-/* The `dictionary` is an object containing books grouped by author. 
- 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],
-    ],
-};
-
-function booksByAuthor() {
-  // Your code here:
-  
+function booksByAuthor(dictionary) {
+	const result = [];
+
+	for (const author in dictionary) {
+		const books = dictionary[author];
+
+		if (Array.isArray(books)) {
+			books.forEach((book) => {
+				result.push({
+					title: book[0],
+					pages: book[1],
+					author: author,
+				});
+			});
+		}
+	}
+
+	return result;
 }
 
-
-
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
-  // Your code here:
-  
+function averagePageCount(booksArray) {
+	let numberOfbooks = booksArray.length;
+	let sumOfAllBooksPage = 0;
+	let result = 0;
+	for (let i = 0; i < booksArray.length; i++) {
+		let test = booksArray[i].pages;
+		if (test) {
+			sumOfAllBooksPage += test;
+		}
+		result = sumOfAllBooksPage / numberOfbooks;
+	}
+	return result;
 }