More than one hundred years of history go into every piece of furniture from French maker Ligne Roset who specializes in one of the most progressive collections of quality furniture I have seen. I am very sure that none of their original designs were as catchy as the "Yang" sofas slick modern appearance that features a versatile shape that allows a variety of set up configurations. The Yang is really four identical sections that make up a well rounded square, which in this case the sum of the parts is as cool as the whole. $3,100 - $3,700 per piece. Designer Francois Bauchet