Nonviolent Communication: A Language of Life: Life-Changing Tools for Healthy Relationships (Paperback, 3) - 『비폭력 대화』원서

How to Win Friends & Influence People (Mass Market Paperback, Revised) - 『인간 관계론』 원서

Word Power Made Easy: The Complete Handbook for Building a Superior Vocabulary (Mass Market Paperback)

Thinking, Fast and Slow (Paperback) - 『생각에 관한 생각』 원서

The Road Less Traveled: New Phychology of Love, Traditional Values and Spiritual Growth (Mass Market Paperback) - 『끝나지 않은 여행』 원서

The Artist's Way (Paperback, 25, Anniversary) - 『아티스트 웨이 - 나를 위한 12주간의 창조성 워크숍』원서