It’s an interesting play on the idea of making your own t-shirt or painting a design on a mug. Penguin has announced on its blog that it will release six titles that have blank covers for the readers to provide their own image. It is a brave move considering the importance of cover art in influencing a sale and also raises some important questions about art and the power of suggestion.
For instance the reader expects Harry Potter to look exactly like the image on the front because that has been suggested and that happens quite a lot with books based around a strong central character so a blank cover really does hand the imagination back to the reader. It sounds like a really interesting idea and might provide a fair few presents for Christmas.