pink de thierry (born helena scheerder, 1943) is a dutch visual artist known for her meta-performance art projects, which included 100 days of living in a painting ("at home", 1984), 30 days of traveling in the us as a performance-art project in 1988, daily entering arcadia for 60 days in germany with "et in arcadia ego sum" in 1990–91 and leading the royal netherlands army in constructing "checkpoint to dutch arcadia" in 1994. since 1995, she has created a series of works entitled "letters from arcadia".