Introduction What is a book, actually? I know that you know what a book is... A few sheets of paper strapped together that you can buy in a bookstore. But that's not the answer I was waiting for. A book is a knowledge product (also called information product, but I prefer to use the term knowledge) It's a way to transfer knowledge from one Human to many others, and, most of the time, be paid to do so. Books are not the only existing knowledge products: video courses podcasts online courses like this one... There are many ways to share