A 4.5 star review.It seems like every time I read a Jasper Fforde book I think that this is his best book yet! Shades of Grey is no exception. Both plot and writing style is Fforde at his best - whimsical, unexpected while still carrying more depth than it would seem on the surface.I was fascinated by the universe - how the things we take for granted are strange and even feared there, and how a person's worth was based on how much colour he/she could see.This could easily become a fast favourite, and I'm looking forward to seeing where Fforde takes the story in the sequels.