The Secret (Korean title: 시크릿) by Rhonda Byrne has been read or recommended by 2 Korean celebrities, including Kim Ho-young, Jinyoung (GOT7). Below, each entry shows where they mentioned it and what they said.
A skeptic at first, Kim Ho-young came to believe in positive thinking after a 'dream notebook' kept in the army started coming true. Recommended to young people. (Source: Seoul Economic Daily)