Prof. Suk delivered a talk invited by the Optical Society of Korea(OSK) to the special session, ‘color science’, for the optical science community. She introduced the affective effect of color particularly focusing on how people emotionally respond to the color properties. In the session, two more speakers were invited: Dr. Jisoo Hwang from the KRISS and Prof. Dr. Youngshin Kwak from the UNIST.