The Little Blue Reasoning Book – 50 Powerful Principles for Clear and Effective Thinking

The Little Blue Reasoning Book – 50 Powerful Principles for Clear and Effective Thinking
The Art of Conversation – A Guided Tour of a Neglected Pleasure
The Art of Creative Thinking – How to Be Innovative and Develop Great Ideas
The Complete Book of Intelligence Tests – 500 Exercises to Improve, Upgrade and Enhance Your Mind Strength
The Courage to be Disliked – How to Change Your Life and Achieve Real Happiness