Curved lines in decoration and furniture are of various kinds. The
rococo styles (Louis XV and the Regency) are overluxurious and often
weak; the curves in Arabic or Celtic ornamentation vague and obscure.
The undulating curves of Persian rugs suggest movement. Curves, in
general, which turn up, make an effect of animation and
happiness. Wall papers and draperies used to emphasize such furniture
curves lend an air of happy animation to the rooms in which they are
Contrast to stiff, straight lines is afforded by the use of the curved
line in decoration, which offers soft, rich and lovely effects. In
general, curved lines make for grace, flexibility and softness.