Two, four, nine modules? Whatever the number, the sum is as follows: a well-proportioned sofa design that stands as the epitome of contemporary elegance. Sum is the name of Normann Copenhagen’s take on a light modular sofa, which has the same complete appearance, whether it is set up in a two-seater version or as a several meter long lounge dream.The design is stringent and focused, but invitingly open in character: elegant and resolute as a wingspread stretching out into the air, the sofa spreads out its armrests and invites you into its soft and homely space. Slim, angled legs lift it from the floor in a delicate counterpoint to the generous contours of the back and armrest. Sum’s contrasting design facets are framed by a harmonious modular concept. In a seemingly effortless flow, the lines of the modules meet and merge into an integrated whole. Also the rear has been taken into consideration, so the sofa can stand in the middle of a room and delight the eye from all angles. Available for immediate delivery from Philadelphia, PA $3,360 in fabric, with Black legs