DDC 150-159: Paging Dr. Freud…

A Teach Me How To Dewey production

This Is How We Dewey:

  • 150 Psychology
  • 151 No longer used—formerly Intellect
  • 152 Perception, movement, emotions, and drives
  • 153 Mental processes and intelligence
  • 154 Subconscious and altered states
  • 155 Differential and developmental psychology
  • 156 Comparative psychology
  • 157 No longer used—formerly Emotions
  • 158 Applied psychology
  • 159 No longer used—formerly Will

What’s that saying? Psychology is the study of a tree whereas sociology is the study of the forest? Well, consider it Arbor Day on Teach Me How To Dewey. My library had a robust 150s selection compared to the 140s, which perhaps isn’t surprising given the broad nature and scope of psychology. The human brain is a deep well of possibility, capable of so much (language, intelligent design) and yet so little (YouTube comment sections). Of course Freud and Jung and Co. pop up here, but also pop psychology and books than aren’t quite as obsessed with sex as Sigmund.

It’s interesting to see how formerly used Dewey sections, like 157 and 159, have or have not been integrated within modern arrangements. Emotions has moved from 157 to 152, yet Will has disappeared, at least from the 150s. Perhaps a more robust study of Dewey would reveal these nuances?


The Road Less Traveled: A New Psychology of Love, Traditional Values and Spiritual Growth
By M. Scott Peck
Dewey: 158.1
Random Sentence: “Life is difficult.”

Savage Girls and Wild Boys: A History of Feral Children
By Michael Newton
Dewey: 155.4567
Random Sentence: “They ran on all fours, bowed head-down in the dust.”

The Plenitude: Creativity, Innovation, and Making Stuff
By Rich Gold
Dewey: 153.35
Random Sentence: “And before Barney it was a well-known Kahuna that only boys like dinosaurs.”


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