Which book have you read that has stunning cover art (on both the hardcover and dust jacket) and has an engaging plot for the reader to follow?

I've finished reading the Themis files (Sleeping Giants, Waking Gods & Only Human) in which I'd liked the cover art for all of them. The thing is that the plot of all three novels are narrated from the perspective of an unnamed interrogator who is talking to the characters involved, so you're basically reading it from a third person view in which the plot is expressed through the means of the characters recapping the sequence of events that took place involving them from their own perspectives and each character has their own traits and occupations.