I have long been intrigued by things that fold, hide and transform. Have a look at these pieces of British Campaign Furniture. They were designed for British military officers who had the luxury of travelling heavily with some of the comforts of home (most people would find it inconvenient to travel with filled bookcases for instance). The leading book on this topic is British Campaign Furniture: Elegance Under Canvass: 1740 - 1940 by Nicholas Brawer. It's out of print and is highly coveted…