Never Lead Alone: 10 Shifts from Leadership to Teamship (Hardcover)

The Daily Stoic: 366 Meditations on Wisdom, Perseverance, and the Art of Living (Hardcover) - 『데일리 필로소피 - 아침을 바꾸는 철학자의 질문』원서

Who Moved My Cheese (Paperback, 영국판) - An Amazing Way to Deal with Change in Your Work and in Your Life

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

The Culture Map : Decoding How People Think, Lead, and Get Things Done Across Cultures (Paperback) - 원서

Linchpin : Are You Indispensable? How to Drive Your Career and Create a Remarkable Future (Paperback) - 『린치핀 : 누구도 대체할 수 없는 존재』원서