I have the Art of Star Wars page-a-day calendar and I love it.
However, it has one drawback: it doesn't give any context.
There's no information given for who did the art, or when, or what it was for. Some images are instantly recognizable, but I've already come across several images that I've never seen before anywhere. The most memorable being a painting of Han firing from the Falcon ramp, and today's painting of a Tusken. I'd love to know where they came from and who created them.