In 18th century, an important sofa style which is called Chesterfield sofa was made after the title of Lord Philip Stanhope, the 4th earl of Chesterfield, England. It is said he requested to create a sofa that would allow gentleman to sit upright comfortable without making suit wrinkled. As a result, the chesterfield sofa usually featured with pull-up leather, deep tufted buttons, rolled arms, a back same height as arms without back cushions. This style now becomes a symbol of elegance and luxury, and usually used in library and club, might be too formal for family living room nowadays. Mid Century Modern may be the hottest word recently. It describes the design movement in interior, architecture and furniture from 1945 to 1975 after world war II, represents the concept of "form follows function", it is a style characterized by clean simplicity with nature. A typical Mid-century Modern sofa usually in rectangular shape with short tapered wood leg, and tufted button back, the material usually in linen-like solid fabric or pull up leathers, velvet is also trendy now to raise the tone of living room Generally, it simplifies the line to emphasize function and absorb some traditional details to enhance the value, which makes it the best choice to fit in any living room environment.