These psychological tests from history will upset, amaze, and maybe enlighten you

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rorschach test inkblot

Courtesy of Redstone Press

This is an original Rorschach inkblot. What do you see?

Psychological tests have always been controversial, yet today they're more popular than ever.

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"Psychobook," a new book from Princeton Architectural Press, explores tests through history and invents some new ones too.

Keep scrolling to see some highlights.