Add a photograph of the cover

Source: http://mo-paw.blogspot.com/2012_10_07_archive.html
Crop out the book cover and retouch it a little bit
Even out the cover luminosity and adjust levels

1. Copy the image into a new layer
2. Clone out all the text, leaving only the blue bits
3. Surface blur with radius 30
4. Convert to grayscale and invert
5. Shift levels of layers to avoid overflow in next step
6. Add the two layers together
7. Adjust levels

The result is a cover with the variation due to lighting reduced.
Convert cover to JPEG