diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..6b665aa
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+  "liveServer.settings.port": 5501
+}
diff --git a/src/books.js b/src/books.js
index c8119bb..b87fff9 100644
--- a/src/books.js
+++ b/src/books.js
@@ -34,67 +34,122 @@
 // 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.
-// }
-
+// } [0,1,2,3]
 
 // Your code here:
-const booksArray = [];
-
-
-
+const booksArray = [
+  {
+    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: "Leigh 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.",
+    },
+  },
+];
 
 // Iteration 2 | Book Details
-function getBookDetails() {
+function getBookDetails(book) {
   // Your code here:
-
+  return `${book.title} - ${book.author} - ${book.pages} pages`;
 }
 
-
-
 // Iteration 3 | Delete Language
 // Your code here:
-
-
-
+for (let key in booksArray) {
+  delete booksArray[key].details.language;
+}
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
-
-
-
-
+booksArray.forEach((book) => {
+  book.readingTime = Math.ceil((book.pages * 500) / 90);
+});
 // 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],
-    ],
+  "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) {
+  let booksInfo = [];
+
+  for (let author in dictionary) {
+    const books = dictionary[author];
+
+    for (let i = 0; i < books.length; i++) {
+      const bookArr = books[i];
+      const title = bookArr[0];
+      const pages = bookArr[1];
+      const bookObject = {
+        title: title,
+        pages: pages,
+        author: author,
+      };
+      booksInfo.push(bookObject);
+    }
+  }
+  return booksInfo;
 }
-
-
-
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
+function averagePageCount(books) {
   // Your code here:
-  
+  let sum = 0;
+  books.forEach((book) => {
+    sum += book.pages;
+  });
+  return sum / books.length;
 }