How to Smile at Rude People (Korean title: 무례한 사람에게 웃으며 대처하는 법) by Jeong Moon-jeong has been read or recommended by 2 Korean celebrities, including Jang Jae-in, Faker. Below, each entry shows where they mentioned it and what they said.
On a fan-compiled list of books on Faker's shelf. (Source: theqoo)