What makes great art great? Why do some works pulse in the imagination generation after generation, century after century? From Botticelli’s Birth of Venus to Picasso’s Guernica, some paintings and sculptures have become so famous, so much a part of who we are, we no longer really look at them. We take their greatness for granted; our eyes have become near-obsolete. We need a new way of seeing.

Unsatisfied with traditional, hand-me-down interpretations of these masterpieces interested only in learning about art, and not from it, Kelly Grovier combed the surface of revered works from the Terracotta Army of the First Qin Emperor to Frida Kahlo’s self-portraits. What did he find? The key to their enduring power to move and delight us. He discovered that every truly great work is hardwired with an underappreciated detail, a flourish of strangeness, that ignites it from deep inside.