Never judge a book by its cover. It’s the golden rule we’ve all been told over and over again.  We’ve heard it repeated all our lives; from parents, teachers, mentors and friends alike. As an idiom asking you not to judge something (and especially someone) by its appearance, it is a fine way to teach compassion, understanding, and the importance of getting to know a person or situation on more than just a surface level. When it comes to actual books though? Maybe we should consider taking the expression less literally. I’m here to tell you why book cover design is so important, and why you should judge a book by its cover.