- The sketches themselves range from quick scribbles to more elaborate works of art; they are striking enough to carry the book on their own, with the wattage of the collective reputations behind them.
They are more akin to a staged napkin sketch, such as I stumbled upon in The New Everyday View on Ambient Intelligence (by Stefano Marzano & Emile Aarts from the Philips Design group in the Netherlands). This book is full of ideas that Philips Design worked on, one of which shows a gentleman writing a little love note on a napkin (a overly pristine napkin) which transmitted (magically, or so it seems) to a remote display device that projects said love note on the ceiling of a bedroom, hopefully his sweeties' room. The image is contrived and artificial (the idea itself isn't bad, but the presentation kills it).
Both books are predicated on the culturally grounded idea that napkins have something to do with ideas (the architecture book), spontaineity / informality (short love notes written is haste), and communication.