It’s most commonly recognized as shorthand for “hugs and kisses”—or Gossip Girl’s sweet-and-vicious sign-off—but graffiti fans will conjure up that mysterious tagger whose Xs and Os have adorned urban settings across Europe.

Under strict anonymity (an arrest in the late ‘90s took care of that), the artist refuses to reveal his/her identity, but this exhibition will bring you one step closer to the person behind the haunting girl-woman dreaming in crosses and circles.