Cover design
Is there anything more important than a cover on a publication? Without opening that book, that notebook or that diary you may or may not get people excited and invite them to go deeper inside. You will awaken all kinds of feelings in the people who see your covers.
You will give people the desire to read or to write on their blank pages every single one of their ideas. With your cover you have the huge power to transmit everything that they are going to find on the pages inside it.