The Power of Solitude (Korean title: 혼자 있는 시간의 힘; original title: 孤独のチカラ) by Takashi Saitō (齋藤孝) has been read or recommended by 2 Korean celebrities, including Park Hae-jin, Jinyoung (GOT7). Below, each entry shows where they mentioned it and what they said.
Chosen for Dailian's Star's Book column. The cover line 'if you can't be alone, you can't move forward' drew Park Hae-jin in, a self-described homebody who values finding one's center. (Source: Dailian)
Not usually one for self-help, but reading it during a spell of self-reproach brought real comfort. (Source: Ilneun Saram, Minumsa)