The Five Love Languages (Korean title: 5가지 사랑의 언어) by Gary D. Chapman has been read or recommended by 2 Korean celebrities, including Yoon Bo-ra, Hong Ji-min. Below, each entry shows where they mentioned it and what they said.
So moving that Yoon Bo-ra gave copies to friends. If you love someone, you should learn to speak the language they value. (Source: Seoul Economic Daily)
A life book read during a marital crisis; it showed Hong Ji-min that touch is Hong's love language, while quality time is the husband's. (Source: Seoul Economic Daily)