Personality
The sixteen types, DISC, the four colours, and using them decently.
Personality
What is the rarest personality type? The story behind “INFJs are only 1%”
Every few weeks a post goes round saying INFJ is the rarest type in the world. The figure is real, but it comes from a survey of Americans in the late 1990s, and it says much less about you than you might think.
19/09/2026 · 5 min read
Personality
What is DISC? The man who built both the lie detector and Wonder Woman
The four letters every HR department uses have a father almost nobody can name. He lost a landmark court case, wrote a book about emotion in 1928, and later invented a heroine whose golden lasso makes people tell the truth.
18/09/2026 · 7 min read
Personality
Using personality tests decently: dos and don'ts from someone who works in HR
The company that publishes the MBTI itself advises against using it to hire people, yet it still turns up in interviews. This piece tells the story of the mother and daughter who wrote it, and draws the line between using tests to understand each other and using them to screen people out.
24/07/2026 · 3 min read
Coming up
Written and waiting; each appears by itself on its date.
- Sun sign, moon sign, rising sign: why your star sign description does not sound like you20/10/2026
- Born on a cusp: why sites disagree about your star sign, and how to find out for certain23/10/2026
- How the Big Five and the sixteen types differ: measuring on a scale or sorting into boxes, and why it decides how far to trust each27/10/2026
- Retook a personality test and got a different result: why it happens so often, and how to read two results30/10/2026