I know print errors aren't very exciting, but its hard not to wonder if anyone has seen them before. This cover's words look like the colors were off-set.

Standard offset presses use a 4 color process, CMYK: Cyan, Magenta, Yellow, and Black. It could emulate a huge number of colors by using only 4 inks, though not all of them certainly, like metallic inks for example. Color art would be separated into these four inks, then a negative would be made of each, and plates burned from the negs for the press. Each color gets run through the press separately, so the page is run through four times. Sometimes, for various reasons, things don't line up correctly, so you wind up with things like this. Should have been tossed, but obviously was missed.

Looks like the magenta went haywire as far as I can tell.

Just for fun, see if the blurry text pops out at you when viewing the book cover through  cheap colored 3D glasses.