The book Lost Horizon is the story of mythical Shangri-La. It is a quick and pleasant read that leaves you wondering was it a dream. Though a great read and indeed a classic, one of the most interesting facts about this book is that was the very FIRST paperback book. Out of the 10 books originally released in paperback, this was known as pocketbook #1. If you are interested in learning more about this, there is a section in the back of the book called ‘About the Book’ it tells the entire story.