Thinking, Fast and Slow by Daniel Kahneman. Kahneman takes us on a groundbreaking tour of the mind and explains the two systems that drive the way we think. Knowing how people make decisions is a key skill set for the designer in practice.
Doorway to the Ukraine Pavilion in Kurgan Oblast, Moscow (as far as I can tell from an awkward translation). Photo by Murr, via Panoramio. ~I wonder if it's still around since there's a war between Ukraine and the mean ol' Russia.