
The search for blue food is used as a metaphor for the pursuit of happiness, and the book is literally revolutionary. It is made of two interlinked novellas - his story and her story - and you have to turn the book around to read both sides of the tale (which you can do one at a time, or 'a bit from this and a bit from that').
The stories are sometimes realistic, sometimes surrealistic, often unexpectedly funny, equally often sad and overall a novel commentary on the way the world is and has always been.