Giving up paper would be hard. Despite the overwhelming digitalization we still use it virtually every day: taking a shopping receipt, making appointment notes in a diary, reading a book or even blowing your nose. Paper is so commonplace that we hardly notice its presence and actually don’t know much about it. What we remember from school about paper is usually general and very basic. We know it is made of wood and those who paid attention might also remember that you need water to produce it. So, what does paper really consist of?