Once you decide what materials your furniture should be made of, other questions come to the fore: What should that furniture look like at a very, very basic level? Regardless of our personality, culture, and other similar factors, humans will respond in predictable ways to lines that they see, in 2-dimensions in upholstery and 3-D in the shapes of the furniture itself (for example, a line drawn along the top of a sofa or the legs of a table). We…