diff --git a/src/books.js b/src/books.js
index c8119bb..3e2b16a 100644
--- a/src/books.js
+++ b/src/books.js
@@ -1,100 +1,139 @@
 // 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 = [
+  // Book 1
+  (book1 = {
+    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
+  (book2 = {
+    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
+  (book3 = {
+    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
+  (book4 = {
+    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(booksArray) {
   // Your code here:
-
+  let book = booksArray;
+  return `${book.title} - ${book.author} - ${book.pages} pages`;
 }
 
-
-
 // Iteration 3 | Delete Language
 // Your code here:
-
-
-
+booksArray.forEach((book) => {
+  delete book.details.language;
+});
+//console.log(booksArray);
 
 // Iteration 4 | Estimated Reading Time
 // Your code here:
-
-
-
+booksArray.forEach((book) => {
+  const time = (book.pages * 500) / 90;
+  book.readingTime = Math.ceil(time);
+});
+//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],
-    ],
+  "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 (let author in dictionary) {
+    const books = dictionary[author];
+    books.forEach((book) => {
+      result.push({
+        title: book[0],
+        pages: book[1],
+        author: author,
+      });
+    });
+  }
+  return result;
 }
-
+//console.log(booksByAuthor(dictionary));
 
 
 // Bonus: Iteration 6 | Average Page Count
-function averagePageCount() {
-  // Your code here:
-  
+// //PARA VER SE FUNCIONA:
+// const books = [
+//   (book1 = {
+//     pages: 128,
+//   }),
+//   (book2 = {
+//     pages: 300,
+//   }),
+// ];
+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(books));
+
+// COM forEach:
+// function averagePageCount(books) {
+//   let total = 0;
+
+//   books.forEach(book => {
+//     total += book.pages;
+//   });
+
+//   return total / books.length;
+// }
\ No newline at end of file