Book Review: Human Dynamics

The underlying direction and purpose of Human Dynamics: A New Framework for Understanding People and Realizing the Potential in Our Organizations by Sandra Seagal and David Horne is to enhance the quality of life that people express individually and collectively.1 People are different both in how they process information, and in what information they process.2

Nine Personality Dynamics
Nine different personality dynamics are identified based on people’s mental, emotional, and physical capacities. The book presents five of them, which make up over 99.9% of the population.3 The authors claim that most people in West are emotional-physical (55%) or emotional-mental (25%), while most Japanese are physical-mental, and a majority of Chinese are physical-emotional. The authors suggest that the fundamental difference between East and West derive more from these differences in personality dynamics than from the differences in culture.4 What if it’s the other way around—or, at least, works both ways—that the culture influences each individual’s personality dynamics?

The construction of the nine different personality dynamics feels artificial to me. While reading, I couldn’t identify my own personality dynamic. Maybe it’s because I had difficulties in remembering each personality dynamic. Or, maybe, it’s because I’m in that 0.1% of the population which isn’t covered by the book? Anyway, the key takeaway for me is that people have genuine, and often drastically different, ways of looking at the world. Different ways of perceiving, processing, and acting. Talking about that and how we need to deal with each other is eye-opening, challenging, inspiring, and painful—regardless of the framework used.

1 Sandra Seagal and David Horne, Human Dynamics: A New Framework for Understanding People and Realizing the Potential in Our Organizations (Pegasus, 1997), p. 13.
2 Ibid., pp. 30, 32.
3 Ibid., p. 23.
4 Ibid., pp. 32–34.

Published by Jan Höglund

Jan Höglund has over 35 years of experience in different roles as software developer, project manager, line manager, consultant, and researcher. This is his personal blog where he shares his reading, book reviews, and learning.

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