In 1968, Arte Povera maestro Mario Merz began making his renowned igloo series, evolving the idea into many iterations throughout his distinguished practice. Gladstone Gallery is currently showing, among other seminal works, the first Merz igloo, with the rather lengthy title “Se il nemico si concentra perde terreno se il disperde perde forza” (If the Enemy Masses His Forces, He Loses Ground: If he Scatters, he loses Strength). Based on a quote from a Viet Cong combat strategy by General Vo Nguyen Giap and made out of plates of dried mud with the title looped in neon script around its crown, the Giap Igloo reflects Merz’s deep preoccupation with the principals of human existence: shelter, our relationship with nature, and the absurdity of war. Through December 17.