Jenny Holzer is a conceptual artist whose practice, from early street posters to more recent light projections and virtual-reality apps, aims to rival ignorance and violence with humor, kindness and courage. Holzer began creating her “Truisms” posters in 1977 as a student in the Whitney Museum’s Independent Study Program. The posters first appeared as anonymous broadsheets wheatpasted onto walls, buildings and fences throughout downtown Manhattan. Presenting text in public spaces is integral to Holzer’s work, be it via T-shirts, plaques, LED signs or stone benches. She completed an MFA at the Rhode Island School of Design and was an active member of the artist collective Colab in the early ’80s.