I LOVED THIS BOOK!! As many people know, I have been a National Geographic fan for quite a while. I love reading the books with my friends and learning a billion new facts, all at once! The moment of going, "Woah, I don't believe that is true!" or, "NO WAY!". This book was an amazing chance to bond with my friends and family, learn amazing new facts, and bring up my grades in science!!! If I had to rate this book from 1 to 100, it would TOTALLY be 100! Now, I know facts confuse a lot of people. Don't worry though, the structure of this book is amazing! It tells facts in an amazing strategized way, where you forget you have ever been confused! I recommend this book to anyone that likes facts, fun, and adventure in your mind. HAPPY READING!