Anyone who’s been online knows that social media has distorted the photography term candid. Pre-teens dramatically looking away from each other’s iPhone cameras! Wedding photographers asking engaged couples to fake laughs! These are the contexts in which we now expect a “candid!” to be shouted in the same way we used to say “cheese!” The work of Henri Cartier-Bresson, a founder of Magnum Photo, reminds us of how the word was meant to be used. “For me the camera is a sketch book,” he said, “an instrument of intuition and spontaneity, the master of the instant which, in visual terms, questions and decides simultaneously.” Though he traveled the world over, Cartier-Bresson spent years exploring Europe, especially after W.W. II, when he turned his camera to people living in the towns and cities forever changed by the Axis onslaught. In 1955, he published those photographs in The Europeans, a humanistic portrait of a fractured continent. That book is now being reissued for the first time, and its best images are on view in this exhibition. —Jeanne Malle