[en] An Introduction to General Systems Thinking Dorset House Publishing Co Inc.,U.S.

[en] Mental Traps · The Overthinker's Guide to a Happier Life Anchor Canada

[en] Mentalligence Health Communications Inc

[en] Emotional Intelligence Ténzy Publisher

[en] Switch On Your Brain Baker Books

[en] Switch On Your Brain · The Key to Peak Happiness, Thinking, and Health Baker Books

[en] Where Good Ideas Come From · The Natural History of Innovation Riverhead Books