I think Shades of Grey is one of Jasper Fford's best books yet. It is intriguing, imaginative, and funny, with sly satirical digs at our own society. The story is set in a society where the ability to see the higher end of the spectrum denotes better social standing. All anyone can see is their own color, to differing degrees, and all other colors are seen as shades of grey. And there are a lot of rules to be strictly followed, or consequences are severe. But Eddie Russet has a dangerous characteristic. He is inquisitive, which leads him to discover some chilling and disturbing disillusionments about his society. He has questions about why technology has become so poor, why people are so different now from how people were before, why nighttime is so terrifying, and what happened to all the spoons? If you are looking for something witty and thought-provoking, I would recommend Shades of Grey.