You would never wish your design to appear unappealing for the viewer and to avoid that you need to understand how images work with colors and texts. In order to opt for book cover designers for hire that are good at their job, go through their portfolio and evaluate their understanding on color schemes and formations. A good illustration is capable of adding power to the words that may appear less significant at first. What are the few ways to find out whether an illustration works well with the text or not, can you suggest a few?