Don't judge a book by its cover. A great sentiment in theory...not so much in practice.
In this episode of A Book and A Dream, Megan O'Russell discusses the importance of cover art, including how changing the cover art of a series (Harry Potter, The Chronicles of Narnia, The Lunar Chronicles) affects our reading experience.
Links mentioned:
Sleepy Fox Designs: https://www.sleepyfoxstudio.net/
Cinder Cover: https://www.goodreads.com/book/show/36381037-cinder
Scarlet Cover: https://www.amazon.com/Scarlet-Book-Two-Lunar-Chronicles/dp/1250768896/ref=nodl_