We have all played with cardboard boxes - all those secret 'dens', castles, houses, caves!! We have marvelled at those pop up books. Here is a combination of the two.
In 2009 Liddy Scheffknecht and Armin B. Wagner got out their tape, and masses of cardboard, and put this popup office together.
A simple idea done large! There is something about this fold up office which makes a lot of sense, although precipitation may cause problems.