Jean Piaget was one of the most salient and inspirational figures in psychological and educational research of the 20th century. He was also prolific, authoring

A look at the origins of cognitive abilities in primate species. Since Darwin’s time, comparative psychologists have searched for a good way to compare cognit

The fascinating—and eerily timely—tale of the forgotten Depression-era psychologists who launched the modern science of childhood development. “Doomed fro

A Marginal Revolution Book of the Year After tracking the lives of thousands of people from birth to midlife, four of the world’s preeminent psychologists rev

How do children learn that the word "dog" refers not to all four-legged animals, and not just to Ralph, but to all members of a particular species? How do they